Abstract
The aim of our study was to compare typical Thai and Hungarian personality profiles of the Zuckerman–Kuhlman–Aluja Personality Questionnaire (ZKA-PQ). 672 Thai and 647 Hungarian were included in our study. The distribution of age, gender and education level were matched. The ZKA-PQ was administered that measures Aggression, Extraversion, Activity, Sensation Seeking and Neuroticism. We tested reliability, the structural invariance and analyzed aggregated mean profiles for cultures as well as typical profiles by cluster analyses. Reliability of factors were acceptable in both cultures, but some facets (especially AC3 Restlessness) showed low reliability. The global Tucker’s coefficient of congruence (TCC) for cross-cultural factorial invariance was 95. We have also run a Multigroup Confirmatory Factor Analysis, but fit indices were not adequate. Cross-cultural neural network invariance was not met either. Hungarians scored significantly higher on Extraversion, Sensation Seeking, Aggression and Activity. Cluster-analyses revealed six typical profiles: Introverted impulsive, Reserved, Resilients, Overcontrolled, Aggressive impulsive and Positive sensation seeker. Majority of first two clusters were Thai respondents, majority for last two clusters were Hungarians. In sum, there were some cross-cultural congruence in factor structure, but strict invariance was not fulfilled. Comparison of mean profiles remain tentative, but cluster analysis revealed cross-cultural differences in typical profiles.
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Introduction
Over the past several decades, trait psychology has emerged as the theoretical basis of individual differences in personality1, mostly based on factor-analytic approach, which regard personality factors as basic personality dimensions. International comparative studies utilizing validated questionnaires have portrayed that personality traits are in many respects universal2. Zuckerman and colleagues3 aimed to create a culture-invariant personality model (AFFM, Alternative Five Factor Model) and proposed that those factors should be included in such a model, which have biological-genetical bases. Rolland4 concluded that cross-cultural stability of the factorial structure stands for the evidence of the identification of human universals. The use of strategies of maximazing factorial invariance (fit with a pre-existing model) has found to be a useful step in establishing universal factors, however, it inhibits the chance of learning about interesting and relevant discrepancies that relate to cultural differences5.
Given the relatively strong relations of personality factors to biological variables, some researchers refer AFFM as psychobiological model of personality6,7,8. However, it should be noted that psychobiological personality model is more often associated with the contributions of C. Robert Cloninger9 and his temperament and character inventory (TCI), which not only measures bio-psycho-social aspects of personality, but also incorporates spiritual aspects, such as self-transcendence. It is notable, that a series of recent researches of Cloninger et al. focuses on new molecular and complex genetical findings of human temperament10,11,12.
Regarding AFFM, research in the last decade focused largely on the validity and cross-cultural invariance of a new factor-facet version questionnaire, Zuckerman–Kuhlman–Aluja Personality Questionnaire (ZKA-PQ)13,14,15 and its shortened form16 (ZKA-PQ-SF). These questionnaires (ZKA-PQ and ZKA-PQ/SF) have received attention in genetical research17,18,19 and in psychiatric or clinical settings20,21,22 in the past decade.
The latest version of the full-lenght questionnaire (ZKA-PQ)13 was also found to be a useful tool in clinical practice to aid the psychological explanation and the diagnosis of personality disorders21,23. Neuroticism was linked to most personality disorder scales, aggressiveness and sensation seeking correlated with antisocial personality disorder, and extraversion negatively correlated with avoidant and dependent personality disorders. All these studies demonstrate the utility and validity of the factor-analytic personality approach in clinical settings.
Although the reliability and validity of ZKA-PQ has been confirmed through all these studies, cross-cultural research on ZKA-PQ showed that cross-cultural differences in mean profiles were weak14. Further, it was noted that scalar invariance was not met and therefore mean profiles comparisons remained tentative. This is in line with other cross-cultural research results with other Five-Factor Model questionnaires, which questioned the validity of mean personality profile comparison of different cultures24,25,26.
However, some other research results27,28 provided evidence for meaningful cross-cultural comparisons of national average profiles of personality factors (Big Five factors). Research found that countries with similar profiles on a multidimensional scaling map were also geographically located close to each other in reality29.
Previously reported Western-Eastern cultural studies24 have found that main difference between the individuals of Western-Eastern cultures lies in their level of Extraversion. McCrae27 found negative correlation between extraversion and collectivism.
It is notable that Hungary is regarded as a rather individualistic, masculine society, wheras Thailand is a rather collectivistic, feminine culture, according to Hofstede indices30. This means that Thai people, generally take more responsibility for others and tend to be less assertive and competitive than ones in individualistic and masculine society (e.g. Hungary). Thai and Hungarian Hofstede scores can be found on Fig. 1.
In the middle of the last century, Blanchard31 has pointed out that typically Thai individuals are characterized by low sensation seeking and low restlesness. "There is no doubt that moderation and peacefulness are among the most important Thai social values" (p. 482). A research examining Thai students, found that Thai students have lower scores on the Sensation-Seeking Scale (SSS) than American students and Buddhist monks have even lower SSS scores than Thai students32. However, it has to noted that these researches were done more than fifty years ago. Another characteristic of Thai culture, as being a Buddhist country, is that it strongly prohibits against physical aggression and rule breaking. However, in a cross-cultural comparison, Thai undergraduate students were as aggressive as Indonesian and Australian students33.
These cross-cultural studies utilized the statistical methodology of comparing aggregate mean scores. However, aggregation of scores has been criticized by some person-oriented researchers. For example, Bergman and colleagues34 have questioned the frequently applied assumption of the variable-oriented factor-analytic approach, namely, that the interrelations between variables are the same for all individuals. Bergman and colleagues34 suggest the application of person-oriented approach, namely the use of cluster analyses to unfold the typical holistic patterns and to form subgroups within the samples.
Distinguishing the “variable-” and “person-oriented approach” within personality psychology originates from Jack Block35 who defined the former as a methodology focusing on relations between variables, and the latter as a methodology unfolding the typical configuration of a dynamic set of variables. Thus, variable-oriented methods unfold groups of variables (factors, aggregated dimensions), whereas person-oriented analyses unfold groups of similar individuals (clusters, types). With regards to personality psychology, personality dimensions can be considered as basic units of variable-oriented approach, and personality types as units of person-oriented approach.
It must be noted, that some variable-oriented methods may apply pattern analyses and meet the interactionist, dynamic and holistic principles of the person-oriented approach (such as growth mixture models, dynamic factor analysis). Additionally, pattern analyses may involve patterns of covariations as well as typical configurations of distinct scores. Thus, the approaches overlap to some extent and the integration of these different methodologies is progressively emphasized36. Laursen and Hoff36 highlight that combination of person-oriented and variable-oriented approaches can lead to a deeper understanding of the processes and patterns of human development.
Regarding the ZKA-PQ, a multicultural (including 22 cultures) study37 have examined so far the typical profiles and identified five cross-culturally stable profiles: resilients (high extraversion and low neuroticism), overcontrolled (low extraversion and high neuroticism), undercontrolled (high aggression and high sensation seeking), reserved (low aggression and low sensation seeking) along with an ordinary (average) cluster.
Aims of the study
The overarching aim of our study was to compare Thai-Hungarian AFFM personality profiles both with variable- and person-oriented methodologies. The aim was to compare two highly different cultures with such a questionnaire that provides measuring universal personality factors.
To our present knowledge, the Zuckerman–Kuhlman–Aluja Personality Questionnaire has not been validated in South-Eastern Asian countries and few cross-cultural personality questionnaire researches have been conducted with regards to Thai people, especially in relation to an individualistic European country, such as Hungary is.
We chose the AFFM model, and its Zuckerman–Kuhlman–Aluja Questionnaire (ZKA-PQ) for our cross-cultural study as it aims to measure universal basic personality dimensions.. We also aimed to provide Thai validation of the questionnaire. There has been a multicultural validation study on ZKA-PQ clusters with already 22 countries involved15, including Hungary, but not including Thailand.
Thus, as first step, we aimed to test the reliability of Thai version. Second, we aimed to test the cross-cultural invariance of the factor-analytic model as well as the relation of facets (subfactors). At last, we conducted analyses for our main aim (comparison of Hungarian and Thai personality profiles) with two different methodologies: 1) comparison of average factor and facet scores, 2) examining the cultural distributions of typical profiles (clusters).
Hypotheses
As far as our present knowledge, no previous study has investigated Thai-Hungarian comparison in light of AFFM model so far. Based on above presented researches, we hypothetized:
-
(1)
Factors of Zuckerman–Kuhlman–Aluja Personality Questionnaire show reliability across cultures (as shown by previous cross-cultural studies15).
-
(2)
Cross-cultural scalar invariance will not be met (as shown by previous cross-cultural studies15).
-
(3)
We expect only negliagable differences in mean personality15 across cultures, with higher scores in Extraversion and Sensation Seeking for Hungarians (based on previous Western-Eastern comparisons24,31 and based on results that extraversion is negatively linked to collectivism27)
-
(4)
We also hypothesize that cluster analytic typical profiles will correspond to previously identified typical profiles in cross-cultural research of 22 countries37 (namely, overcontrolled, undercontrolled, resilient, reserved, ordinary).
Materials and methods
Participants
Altogether 1319 individuals (672 Thai and 647 Hungarian) were included in our final sample. The study was approved by Psychologics Ethics Committee of university of the first author and an independent Ethics Committee for Human Research of the university of the second author.
In Thailand, the study design involved conducting a survey among general and nonclinical participants, employing a nonsampling method. The inclusion criteria required participants to be between 18 and 59 years old, possess the ability to understand, read, and write in Thai language, be capable of utilizing an electronic questionnaire created with Google Forms, and own electronic devices such as smartphones, tablets, or notebooks that can access the researcher’s online form. The exclusion criteria consisted of individuals with a history of psychiatric disorders or those currently under the care of a psychiatrist, as well as individuals diagnosed with or receiving treatment for substance use disorder.
In Thailand, the research was conducted in Chiang Mai, the main city in the northern region of Thailand. However, participants were not restricted to individuals residing in Chiang Mai, but rather open to individuals from any part of Thailand who had internet access and met the criteria (e.g., age 18–59). Nevertheless, it is anticipated that the majority of the participants were from Chiang Mai and nearby provinces, such as Chiang Rai and Lampang, as the invitations primarily targeted individuals in these areas.
In Hungary, in order to generate a matched sample regarding age, gender, education distributions, we took the Thai sample as the reference sample. There were two larger Hungarian samples our data originated from: one from an earlier study (see details38) of workers in 19 different companies from six different cities (Budapest, Paks, Vértes, Miskolc, Sülysáp, Budaörs), and another one recruited from universities of capital city, Budapest. Altogether, 3737 Hungarian individuals completed the ZKA-PQ questionnaire. 74% was living or studying in capital city of Hungary (Budapest). 22% of respondents (mainly company workers) were from county ‘Tolna’ and the remaining respondents (4%) were from other parts of Hungary (with no regional restrictions). Individuals from this larger database were randomly assigned to the final dataset, based on calculated quotas to match the gender, age and education distribution of the Thai sample.
In our final sample, the majority (73.3%) of participants were females, half of the respondents were university students (50.0%), and around half of sample was under age 26 (51.9%). 89.5% of respondents below 26 yrs were university students. Distributions are presented in Table 1. Age, gender and education distributions did not differ significantly in our final samples [Gender (Chi2 = 0.17, p = 0.709), Age (Chi2 = 0.78, p = 0.941) and Education (Chi2 = 1.35, p = 0.718)].
Instrument
The ZKA-PQ13 was administered, which contains five factors with four facets per factor and with 10 items per facet: (a) AG: Aggressiveness (AG1: Physical Aggression, AG2: Verbal Aggression, AG3: Anger, and AG4: Hostility); (b) AC: Activity (AC1: Work Compulsion, AC2: General Activity, AC3: Restlessness, and AC4: Work Energy); (c) EX: Extraversion (EX1: Positive Emotions, EX2: Social Warmth, EX3: Exhibitionism, and EX4: Sociability); (d) NE: Neuroticism (NE1: Anxiety, NE2: Depression, NE3: Dependency, and NE4: Low Self-Esteem); and (e) SS: Sensation Seeking (SS1: Thrill and Adventure Seeking, SS2: Experience Seeking, SS3: Disinhibition, and SS4: Boredom Susceptibility). Responses were made using 5-point Likert type ratings. Items of the ZKA–PQ questionnaire with the scoring instruction can be found in article of Aluja et al.13. It is freely available for any interested researchers, except for commercial use.
Procedure
The ZKA-PQ13 was administered in native language (Thai and Hungarian) of participants. In Thailand, to recruit participants, several methods were employed, including: (1) placing banners on websites to promote the study to users, (2) posting study advertisements on the Department’s Facebook page, and (3) distributing flyers within the community for advertisement purposes. Interested individuals were provided with a link to give their consent and complete the questionnaires, which included the Thai Version of the ZKA-PQ (Thai ZKA-PQ), Core Symptom Index (CSI-15), Neuroticism Inventory-15, and demographic data. Participants received a payment of 100 baht [equivalent to 2.85 US dollars (July 2023)] for each completed set of questionnaires.
Ethical considerations were taken into account throughout the study. The invitation process was conducted without inducement or coercion. Participants’ identities were kept confidential and replaced with unique research codes. The researchers’ assistant maintained separate files for the identification and participant codes. Communication between researchers and participants occurred exclusively through the research assistant. Participants were requested to provide their contact information (e.g., email, cell phone, Line app, or any private contact) to receive notifications from the research assistant.
Hungarian participants, both company workers and university students completed an online version of the anonymous questionnaire. Hungarian participants were recruited from two different platforms. University recruitment (in capital city of Hungary) was carried out in psychology classes. Students were also encouraged to invite their acquaintances to participate in the study. However, the university-recruited sample comprised 90.5% of university undergraduate students. After participants had completed the battery, academic staff of the personality psychology classes provided an explanation of questionnaire. To encourage participation, an automatically generated report was also provided (anonymously) to all respondents including some interpretation of their ZKA-PQ outcomes. The second Hungarian data collection was completed in 19 different companies from 6 different Hungarian cities (Budapest, Paks, Vértes, Miskolc, Sülysáp, Budaörs). These companies all had their own Human Resources Department that helped organize data collection. In return, executives were offered a report on the companies’ mean personality profiles.
Data analyses
First, we tested skewness and kurtosis of the examined scales. We applied the rule to test if these values were in the range of − 1 and 1, as suggested by Aluja et al.39. Reliability of scales were assessed with Cronbach alpha values (calculated in SPSS40) and with Omega values (calculated in JASP programme41). To test the factor structure, at first, an exploratory factor analysis was carried out (Principal Axis Factoring with Varimax rotation as proposed by Aluja et al.13), then we tested how well the factor structure replicates the original Spanish validation model published in 2010 by Aluja13. The Tucker congruency coefficient42,43 was calculated for pairwise comparison based on the results of the original Spanish and our two samples of Hungarian and Thai participants. Then, we applied a multigroup CFA to confirm the structure of the five-factor model proposed by Aluja et al.13, using AMOS44. Different models for the 20 facets and 5 factors with additional complexity were tested (similarly as proposed by Aluja et al.13): at first, the simple structure (all facets were linked to their own single latent factor only) was tested, then the model45 including the relations by the secondary loadings above 0.30, then above 0.25. As a next step, correlated error terms were applied based on modification indices. Subsequently, three additional measurement invariance steps were carried out (1) metric (weak factorial) invariance with equivalence of factor loadings; (2) scalar (strong factorial) invariance with equivalence of item intercepts or thresholds; and (3) residual (strict or invariant uniqueness) invariance with equivalence of items’ residuals.
We also applied the following fit indices: The Tucker-Lewis index (TLI)46,47, the comparative fit index (CFI)48, and the root mean square error of approximation (RMSEA,49,50). A good fitting model is characterized by a χ2/df ratio less than 351,52 (or less strictly below 5)53. CFI and TLI values close to 0.95 or greater indicate good fit, however CFI values are also considered acceptable based on the 0.90 criterion54. RMSEA values up to 0.05 indicate a close fit, but values up to 0.08 can be accepted as fair fit51. It is important tonote that cutoff values are a topic of considerable controversy55,56.
Then we also examined the relations of scales with a neural network analysis of JASP41. This network is calculated based on partial correlations between variables. The network model was selected based on the Extended Bayesian Information Criterion (EBIC)57 and estimated by Graphical Gaussian Models (GGM) combined with a graphical least absolute shrinkage and selection operator (LASSO) method58. We have applied analysis option of EBICGlasso with normalized centrality measure and tuning parameter of 0.50, using the R package ‘qgraph’ with ‘EBICglasso’ estimation59. Network invariance was tested by R package of ‘NetworkInvarianceTest’60,61.
As a next step, we applied different person-oriented methodologies, namely model-based clustering62 and hierarchical clustering with k-means relocation63. We used the ROPSTAT statistical package64, a general statistical package appropriate for conducting person-oriented analyses. This package implements ‘mclust’ R package for model-based clustering. We evaluated cluster solutions with different indices (for model-based clustering the BIC value62, for hierarchical clustering the ESS increase value and homogeneity index63). ESS% within-cluster homogeneity measure can be defined as follows: EESS% = 100 ∗ (SStotal − SScluster)/SStotal = 100 ∗ (1 − SScluster/SStotal). SStotal is the sum of the sum of squared deviations from the input variable means for the whole sample. SScluster is the sum of squared deviations from the input variable centroids for each cluster. The homogenity coefficient of a cluster is the average of the pairwise within-cluster distances of cases65.
Ethics approval and consent to participate
The study was conducted according to the guidelines of the Declaration of Helsinki. Ethical approval was given by independent ethics committees of universities of first (ethical approval number: 289/2016/P) and second authors. Informed consent was obtained from all participants included in the study.
Results
Descriptive statistics
Descriptive statistics can be seen in Table 2, and reliability analyses of scales are presented in Table 3.
Scales showed normality-range skewness and kurtosis values. Reliabilities on most scales were adequate, however, in more scales neither Cronbach alpha nor McDonalds’ Omega values reached an adequate level among Thai participants. Lowest reliability was found in AC3 (Restlessness) scale. In scales, which had lower reliability, we excluded some items (see Table 2), in order to reach the marginal 0.6 reliability values. We recalculated scales (both in Hungarian and Thai samples in order to apply the same calculation in both cultures and to have at least marginally adequate reliability values. Also, it must be noted, that main scales all reached Cronbach alphas of 0.80.
Factor analyses
The factor analyses (principal axis factoring, Varimax rotation, see Table 4.) replicated the original model10 except for AC3 Restlessness scale, which loaded more on Sensation Seeking Factor than to Activity factor in both cultures.
The global Tucker’s coefficient of congruence (TCC) between the two samples was 0.95. The TCC values for facets were below 0.90 only in cases of AC2 (General Activity) and SS4 (Boredom Susceptibility/Impulsivity). When comparing our two samples one by one with the original Spanish validation sample9, the global TCC for Hungarian structure was 0.97 and was 0.94 for the Thai one. Regarding the Hungarian sample, AC3 (Restlessness) received the lowest coefficient (0.87). In relation to the Thai sample, NE3 (Dependence: 0.88), SS2 (Experience Seeking: 0.84) and SS4 (Boredom susceptibility/Impulsivity: 0.78) had scores below 0.90.
We have also run a Confirmatory Factor Analysis (see Table 5) with a multi-group analysis for the original structure to test configural invariance, but the fit indices were not adequate (CMIN/df = 12.70; GFI = 0.75; CFI = 0.74; RMSEA = 0.09 [0.09–0.10]).
However, fit indices increased highly when including secondary loadings (based on modest loadings [> 0.25] published by McCrae6, (CMIN/df = 4.84, GFI = 0.92, CFI = 0.93, RMSEA = 0.05 [0.05–0.06]). After, we examined metric, scalar and residual invariance, but neither reached satisfactory fit indices.
Neural network analyses
Neural network analyses (see Figs. 2 and 3) that weights of the connections between these facets differed with at least 0.15 score for the following pairs.
For pairs of AG4 (Hostility)–AG2 (Verbal Aggression), SS3 (Disinhibition)–SS4 (Impulsivity), AC3 (Restlessness)–SS4 (Impulsivity), as well as NE1 (Anxiety)–NE3 (Dependence), weak connections for Thais, definite connections for Hungarians were present. For AC1 (Work compulsion)–SS4 (Impulsivity) pair, no connection for Hungarians, negative connection for Thais were observed. For pairs of EX3 (Exhibitionism)–EX1 (Positive Emotions) and NE1 (Anxiety)–NE4 (Low self-esteem) stronger connections were observed among Thais. Network invariance test (M = 0.20, p < 0.000) showed significant difference between the Thai and Hungarian sample. Weights of 53 relations became significantly different, whereas the remaining ones (136 relations) showed cross-cultural invariance. Also, the global strength invariance test (S = 0.26, p = 0.83) became nonsignificant.
Comparison of mean profile scores
Several significant differences arose in the mean facet scores between cultures (see Table 6), however most of them had small effect size (Cohen d smaller than 0.50). Cohen d was above 0.50 only in case of five facets and one factor (EX): Thais scored significantly lower than Hungarians on EX4 Sociability, EX2 Social Warmth, EX1Positive Emotions, AC2 General Activity, SS2 Experience Seeking. Thais had significantly lower level of total aggressiveness (AG), sensation seeking (SS) and activity (AC) as well, although with only small (AG, SS) or medium sized effect size (AC).
Cluster analyses
We have run probability-based model based clustering and traditional hierarchical cluster analyses with k-means relocation on the combined samples on the 20 facet z scores. Based on model based clustering’s BIC values, solution with three VVE (Ellipsoidal, varying volume and shape and equal orientation) clusters become optimal. One profile (105 Thai and 21 Hungarian individuals) had mean z-scores outside the − 1 and 1 range (see Fig. 4).
They scored high on SS4 (Impulsivity, z = 1.29), on AG1 (Physical Aggression, z = 0.67) and AG4 (Hostility, z = 0.66), whereas they scored low on AC4 (Work Energy, z = −0.94), EX1 (Positive Emotions, z = −0.98) and EX2 (Social Warmth = −0.54). We named them Introverted impulsive, based on their high scores on impulsivity and low scores on extraversion. The z-scores of the two other profiles were all within −0.50 and 0.50 range. However, one profile had rather higher values (z scores > 0.30) for SS2 (Experience Seeking, z = 0.42), AC3 (Restlessness, z = 0.30), NE1 (Anxiety, z = 0.37), NE2 (Depression, z = 0.50). Therefore we named this profile as Restless neurotic. 171 Thai (36.2%) and 301 Hungarian (63.8%) individuals belonged to this cluster. The third profile scored relatively low on AG1 (Physical aggression, z = −0.32), NE1 (Anxiety, z = −0.31) and NE2 (Depression, z = −0.34), therefore we named them Resilients. 396 Thai (54.9% and 325 Hungarian respondents (45.1%) were assigned to this cluster.
After, we also ran a set of hierarchical clustering, and compared solutions with 2 to 8 clusters. In Table 7, the different cluster adequacy indices can be found for the two to eight-cluster solutions.
If we look at increasement of ESS values, then the rate of increasement comes to a knee point at 6 clusters. It means that the growth rate does not increase from this point. At the 6-cluster solution, minimum score of homogenity index decreases below the level of 1. In Table 8, the different profiles are grouped in order to provide a comparison for the different cluster solutions. We provided names based on a previous study on cross-country ZKA-PQ profiles34, in which profile with low EX and high NE was named as 'Overcontrolled', high EX and low NE was named as 'Resilient', high SS and high AG was named as 'Undercontrolled', low SS and low AG was named as 'Reserved', average profile was named 'Ordinary'. (These five profiles are described by previous research34.
We can see that the 2-cluster solution provides a resilient and an overcontrolled profile, the 3-cluster solution provides an additional undercontrolled profile (aggressive-impulsive). In the 4-cluster solution there is an additional subtype of resilients (reserved profile). In the 5-cluster solution, a new, more positive undercontrolled profile (positive sensation seeker) is added. In the 6-cluster solution, there is a third undercontolled profile appearing (introverted impulsive). The 7-cluster solution adds only an ordinary profile whereas a new overcontrolled profile (active overcontrolled) appears in 8-cluster solution. Profiles are visualized on Fig. 5.
The cultural differences for cluster assignments were measured by discriminant analyses in order to see how well the cluster assignments could discriminate between cultures. The canonical correlation became the highest for the 6-cluster solution.
This six-cluster solution resulted in two patterns that were more typical among Thai (65.4% and 75.9%), two other patterns that were more typical in Hungary (77% and 68%), and two patterns that were similarly typical among Thai and Hungarian people. The distribution of clusters can be seen in Table 9.
Comparing the 6-cluster to the 7-cluster solution, we can conclude that adding a seventh cluster neither increases the discriminative power nor provides a new profile with definite deviations from mean profile. Therefore, we further analyzed the 6-cluster hierarchical cluster solution. The mean profiles ZKA-PQ factor and facet z-scores both for the model-based 3-cluster-solution and for this hierarchical 6-cluster solutions are presented in Fig. 6. According to the results, the 6-cluster solution provides higher deviations from mean profiles (profiles of the 6-clusters are also visualized in Fig. 7).
One cluster (half Thai–half Hungarian) was high in Extraversion (z = 0.68), but low in Aggression (z = −1.20), Neuroticism (z = −1.29) and Sensation seeking (z = −0.82). We named them ‘Resilients’, as they presented similar profile (high EX, low NE) to the Resilients of previous 22-country study of ZKA profiles61. The other profile, which we named as ‘Overcontrolled neurotic’, that had around equal number of Thai and Hungarian individuals, was low in Extraversion (z = −1.10), but definitely high in Neuroticism (z = 1.54) and moderately high in Aggression (z = 0.71). In the above-mentioned cross-country study36, similar profile was named as ‘Overcontrolled’. The ‘Aggressive-impulsive’ cluster (dominantly Hungarian) was named after their definitely high scores in Aggression factor (z = 1.10 and Impulsive Sensation Seeking factor (z = 1.04). They were similar to cluster of ‘Undercontrolled’ ones in the above-mentioned study36. The ‘Positive sensation seeker’ (also dominantly Hungarian) profile was moderately high in Extraversion (z = 0.86), Sensation Seeking (z = 0.61), Activity (z = 0.75) but low in Neuroticism (z = −0.64). The ‘Reserved’ (dominantly Thai) ones were low in Aggressiveness (z = −0.50) and Sensation Seeking (z = −0.70), similarly to ones of ‘Reserved’ cluster of previous cross-country study36. The ‘Introverted impulsive’ (other dominantly Thai profile) ones had low scores in Extraversion (z = −0.75), but were impulsive (z = 0.81).
Discussion
Although our overarching aim was to compare Thai and Hungarian personality profiles of Alternative Five Factor Model dimensions, our study also provides the first validation of ZKA-PQ (Zuckerman–Kuhlman–Aluja Personality Questionnaire, Aluja and colleagues13) Thai version. Reliability of the main factors (EX, AG, NE, AC, SS) were adequate. The factor structure of the facets showed similar pattern relative to the results of previous studies for most of the facets13,15, except for AC2 (General Activity) and SS4 (Boredom Susceptibility/Impulsivity). The lowest congruence was found in relation to SS4. CFA analyses showed low fit indices, which somewhat increased when allowing secondary loadings, as suggested by Aluja and colleagues13. However, only configural invariance was met by also with applying cross-loadings and correlating the error terms. Neural network analyses also confirmed the lack of cross-country invariance for the relations of the facets. The largest difference was found with relation to SS4: it showed relation to Restlessness (AC3) and Disinhibition (SS3) for the Hungarians, but not for the Thais, whereas it showed relation to for Work Compulsion (AC1) for the Thais. These differences can account for lack of factorial invariance, which was observed in relation to SS4.
Although we reported the mean profiles for countries, as well as their comparison by independent samples t-test, the fact that scalar invariance was not met questions the adequacy of comparison. The highest Cohen d was found in case of AC2, however, exactly Tucker Congruency Coefficient for this facet was only 0.88. We also have to note that z-scores for all facets for both countries fell within the average range of z-scores (between −0.50 and 0.50).
However, the differences we found were in congruence with expected results, thus Thai individuals, living in a Buddhist, collectivistic culture, scored lower on Extraversion, Activity and Sensation Seeking. They also scored lower in Aggressiveness, which may be linked to Buddhist traditions and their culture’s low score in Masculinity30.
However, comparison of mean profiles remain tentative both due to lack of scalar invariance and lack of between-country deviations from mean profiles. Findings of only weak or negligeable differences in mean personality scores across different cultural groups were also found in other cross-cultural research15.
Cluster analytic results, on the other hand, have provided insight into more typical profiles. Clusters of our research results could be linked to previous cross-cultural research on ZKA-PQ clusters37, which previously identified resilient, reserved, overcontrolled and undercontrolled types besides the average profile. We additionally identified different subtypes for undercontrolled type: introverted impulsive, aggressive impulsive and positive sensation seeker clusters. Hungarians showed extraverted, whereas Thai showed introverted impulsive patterns as typical undercontrolled profiles.
Out of the six typical profiles, two, rather introverted profiles, were more typically characteristics of Thais: one of reserved, calm, low sensation seekers and another of impulsive aggressive introverted ones. The impulsive Thai profile, on the other hand, is a negative pattern with an inclination toward impulsivity related disorders. The emergence of this introverted – impulsive – aggressive pattern among Thais may be linked to the relatively high prevalence (6.4%) of borderline personality disorder among Thai students66 which is a personality disorder with rather low introversion and high impulsivity67.
There were two, more typically Hungarian profiles. One was a positive and the other was a negative sensation seeking profile. Although mean profile differences have also indicated the higher sensation seeking level among Hungarians, based on only the mean profile, Hungarians are characterized by higher impulsivity and higher aggressivity as well. Although sensation seeking and its subscale, impulsivity have been linked to a number of dysfunctional behavior68, some previous researches have emphasized the need to distinguish between positive and negative patterns of sensation seeking69,70. Our cluster analytic results showed that the ‘positive’ sensation seeking type was characterized with low aggression and low neuroticism but high activity. The other, negative pattern of impulsivity among Hungarians was a pattern of high aggression and high neuroticism. Individuals belonging to this cluster could be inclined toward antisocial, narcissistic, borderline or sadistic personality (Cluster B) pathology, according to results of Aluja and colleagues71 and Huang and colleagues72.
Besides these profiles, we have to note that the ‘Extraverted Resilient’ and ‘Introverted Overcontrolled’ patterns were present in both cultures at similar rates (11–12% for overcontrolled, 13–15% for resilient type). This means that not all Thais could be characterized by an introverted profile, at the same time, neither were all Hungarians highly extraverted.
In sum, mean level group comparisons did not result in reliable comparisons, but examining cluster profiles, more typical profiles, also clinically relevant ones could be unfolded, especially regarding Cluster B pathology.
Finally, we believe that our strategy can be applied to not only cultural group comparisons but to clinical-non-clinical comparison or comparison of differentiation within a clinical group. When examining a clinical group, if we cannot assume the homogenity of the group (which is usually the case), we cannot assume that the mean factor profile is and adequate and satisfactory summation for all individuals within the given clinical group. Clinical practices can be enhanced if patients are treated not as a prototype of a group, but as a person with an individual holistic profile of the psychological, biological and environmental determinants.
Conclusions
In sum, the Zuckerman–Kuhlman–Aluja Personality Questionnaire measures reliably the five main factors of Alternative Five Factor Model but some facet-level reliabilities were weak, especially within AC factor. There were some cross-cultural congruence in factor structure, but strict invariance was not fulfilled. Comparison of mean profiles remain tentative, but cluster analysis revealed cross-cultural differences in typical profiles: some specific introverted profiles (reserved and introverted impulsive) were more typical to Thai, whereas some specific extraverted profiles (aggressive impulsive and positive sensation seeker) were more typical to Hungarians. However, there were an extraverted resilient and an introverted overcontrolled clusters as well, which were equally present in both cultures.
Limitations
The main limitation of our study lies in including only one questionnaire, the Zuckerman–Kuhlman–Aluja Personality Questionnaire, therefore besides structural validation, no other validation process (such as concurrent, convergent, predictive and discriminant) could be applied. There were other limitations, such as age-gender and education matching afterwards were applied, only online administration of questionnaire was done (those having no access to computers could not participate), no test–retest measures were applied, no external validation of the clusters were applied.
Future research should incorporate other questionnaires (for concurrent, convergent and discriminant validity) as well as biological measures and apply longitudinal approach in order to test predictive validity of the different personality profiles.
Data availability
The datasets generated and/or analysed during the current study are available in the Figshare repository, zka_THAI 672 HU 647_FIGSHARE 22nd July 2023.sav or dataset for ZKA (pakaranhome.com).
Abbreviations
- AC:
-
Activity
- AFFM:
-
Alternative five factor model
- AG:
-
Aggressiveness
- CFA:
-
Confirmatory factor analysis
- CFI:
-
Comparative fit index
- EX:
-
Extraversion
- GFI :
-
Global fit index
- NE:
-
Neuroticism
- RMSEA:
-
Root mean square error of approximation
- SS:
-
Sensation seeking
- ZKA-PQ:
-
Zuckerman–Kuhlman–Aluja Personality Questionnaire
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Acknowledgements
The authors acknowledge the assistance of Professor David Rowland of Valparaiso University in editing the manuscript.
Funding
The preparation of the present article was supported by university grant of the Károli Gáspár University of Reformed Church (Cross-cultural examination of personality types, Grant no: 20611B800), data collection was supported by Faculty of Medicine, Chiang Mai University (Grant no: 152/2562).
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Z.K. initiated the study, prepared first draft an made all data analyses. T.W. and N.W. took part in design of the study, organized data collection and took part in writing introduction and discussion. V.Z. and B.B. provided literature searches, and took part in writing introduction part. Z.M. and B.B. helped writing introduction and discussion part. All authors read and approved the final manuscript.
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Tinakon Wongpakaran and Nahathai Wongpakaran are the editorial board members of the Science Reports, the rest authors declare that they have no competing interests.
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Kövi, Z., Wongpakaran, T., Wongpakaran, N. et al. Comparison of typical Thai and Hungarian personality profiles using the Zuckerman–Kuhlman–Aluja Personality Questionnaire. Sci Rep 13, 13508 (2023). https://doi.org/10.1038/s41598-023-40654-z
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DOI: https://doi.org/10.1038/s41598-023-40654-z
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