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Psychometric Assessment of the 18-Item Bangla Mental Health Inventory (Bangla MHI-18)

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Abstract

The Mental Health Inventory-18 (MHI-18) is an 18-item self-report psychometric scale that assesses mental health among general populations. There are several adapted and translated mental health assessment scales in Bangladesh. However, none of these assess the complete state of mental health that the MHI assesses. Consequently, the present study assessed the psychometric properties of the MHI-18 in the Bangladesh context (N = 571). Confirmatory factor analysis confirmed the four-factor structure of the Bangla MHI-18 (i.e., anxiety, depression, behavior control, and positive affect). Second-order tests of measurement invariance suggested that the Bangla MHI-18 assessed the same construct among both male and female groups. The instrument had acceptable levels of internal consistency reliability, test–retest reliability, composite reliability, average variance extracted, standard error of measurement, discrimination power, convergent validity, and concurrent validity. The tests relating to differential item functioning suggested lack of item response bias. Accepted levels of infit and outfit MnSqs, item and person separation, and reliabilities in rating scale model suggested that the Bangla MHI-18 had satisfactory psychometric properties. This will be helpful to Bangladeshi mental health practitioners to assess the complete mental state of young clients and contribute in formulating necessary therapeutic intervention for ensuring sound mental health.

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Abbreviations

CFI:

Comparative Fit Index

CTT:

Classical Test Theory

COX Z:

Standardized Cox’s Noncentrality Parameter

DIF:

Differential item functioning

GFI:

Goodness-of-Fit Index

GHQ:

General Health Questionnaire

IRT:

Item Response Theory

ITC:

International Test Commission

LOR Z:

Standardized Liu-Agresti Cumulative Common Log-Odds Ratio

MHI:

Mental Health Inventory

MnSq:

Mean Square

MSQLI:

Multiple Sclerosis Quality of Life Inventory

RMSEA:

Root Mean Square Error of Approximation

RSM:

Rating Scale Model

SDQ:

Strengths and Difficulties Questionnaire

SRMR:

Standardized Root Mean Square Residual

TLI:

Tucker–Lewis Index

WEMWBS:

Warwick-Edinburgh Mental Well-being Scale

WHO:

World Health Organization

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Funding

No funds, grants, or other support was received.

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Authors and Affiliations

Authors

Contributions

All authors contributed to the study conception and design. Material preparation, data collection and analysis were performed by Oli Ahmed. The first draft of the manuscript was written by Oli Ahmed and all authors commented on previous versions of the manuscript and revised accordingly. All authors read and approved the final manuscript.

Corresponding author

Correspondence to Oli Ahmed.

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Conflict of interest

This study was carried in the absence of any personal, professional or financial relationships that could potentially be constructed as a conflict of interest.

Informed Consent

The importance and purposes of this study were communicated with participants. They were assured about the confidentiality of their responses. Before taking their responses, written informed consent was taken.

Ethics Approval

In the present study, all procedures were performed following the 1964 Helsinki Declaration and its later amendments, and the study was approved by the research team’s university ethics committee. The importance and purposes of this study were explained to respondents. They were assured about the confidentiality of their responses. Respondents had the right to withdraw their data at any stage of the study.

Consent to Participate

Informed consent was obtained from all individual participants who participated in the study.

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Yes.

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Ahmed, O., Griffiths, M.D. & Hossain, M.A. Psychometric Assessment of the 18-Item Bangla Mental Health Inventory (Bangla MHI-18). Psychol Stud 67, 110–122 (2022). https://doi.org/10.1007/s12646-022-00645-y

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  • DOI: https://doi.org/10.1007/s12646-022-00645-y

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