Description

The Opinions about Mental Illness Scale (OMI-51) is a psychometric instrument designed to assess attitudes, beliefs, and perceptions toward mental illness and individuals experiencing psychiatric disorders. The scale evaluates the way individuals and communities perceive mental health problems and provides a quantitative measure of social attitudes toward people with mental illness.

The OMI-51 was developed by Cohen and Struening in 1962 and consists of 51 items. It is considered a widely used and valid research instrument for identifying and differentiating community perceptions and attitudes toward mental illness.

The primary purpose of the scale is to measure different dimensions of attitudes toward mental illness and to quantify social perceptions related to individuals experiencing psychiatric conditions. Originally developed as a research tool, it has been extensively applied in studies examining stigma, social beliefs, and public understanding of mental health.

The Greek version of the scale has been translated and adapted, with applications reported in Greek populations.

Data Analysis and Use

Data collected through the OMI-51 can be analyzed to examine attitudes toward mental illness and identify patterns of social perception regarding psychiatric disorders.

Statistical analysis may include descriptive statistics, factor analysis, reliability assessment, and comparisons between different demographic or social groups. The scale allows researchers to investigate how attitudes toward mental illness vary according to characteristics such as age, education, professional background, or personal experience with mental health issues.

The OMI-51 can be used in research related to mental health stigma, social acceptance, community attitudes, psychiatric education, and interventions aimed at improving public understanding of mental illness.

The factors identified through statistical analysis include Social Discrimination, Social Restriction, Social Care, Social Integration, and Etiology. These dimensions provide a comprehensive framework for understanding different aspects of attitudes toward mental illness.

Objective

The primary objective of the Opinions about Mental Illness Scale (OMI-51) is to evaluate the attitudes and beliefs individuals hold toward mental illness and people experiencing psychiatric disorders.

The instrument aims to measure social perceptions related to acceptance, discrimination, restrictions, support, integration, and beliefs regarding the causes of mental illness.

Through the assessment of these dimensions, the OMI-51 contributes to understanding social stigma and the factors influencing attitudes toward mental health and psychiatric care.

Structure and Content

The OMI-51 consists of 51 statements addressing different opinions and attitudes regarding mental illness. The items include both positive and negative statements related to perceptions of psychiatric disorders and individuals affected by them.

The scale examines five main dimensions derived from statistical analysis: Social Discrimination, which reflects negative social judgments and distancing from individuals with mental illness; Social Restriction, which concerns beliefs regarding limitations and control of individuals with psychiatric disorders; Social Care, which evaluates supportive attitudes and willingness to provide assistance; Social Integration, which assesses acceptance and inclusion within society; and Etiology, which concerns beliefs about the causes of mental illness.

Scoring

The OMI-51 uses a six-point Likert response scale, where participants indicate their level of agreement with each statement. Responses range from 1 = Completely Agree to 6 = Completely Disagree.

Each item is scored according to the participant’s response, and factor scores are calculated by summing item responses and applying the appropriate transformation based on the scoring procedure. There are no negative responses in the scoring system.

Higher scores on each factor indicate stronger agreement with the attitudes represented by that factor.

Statistical Analysis

Statistical evaluation of the OMI-51 may include descriptive analysis, factor analysis, reliability assessment, and comparative analyses between different population groups.

Factor analysis is used to examine the underlying structure of attitudes toward mental illness and identify the main dimensions represented by the scale. The identified factors provide a multidimensional assessment of social attitudes and allow researchers to examine specific areas of stigma or acceptance.

The scale can also be used to investigate relationships between attitudes toward mental illness and variables such as knowledge of mental health, education, professional experience, or exposure to psychiatric conditions.

Validity

The OMI-51 demonstrates satisfactory validity as a measure of attitudes toward mental illness. The scale has been translated into Greek and adapted for use within the Greek population.

Its validity is supported by its theoretical foundation, extensive use in mental health research, and its ability to distinguish different dimensions of social attitudes toward psychiatric disorders.

The factor structure of the instrument supports its construct validity by identifying meaningful dimensions related to discrimination, restriction, care, integration, and beliefs about mental illness causation.

Reliability

The reliability of the OMI-51 has been examined through test–retest procedures.

The scale demonstrates high test–retest reliability for both the total score and its individual factors, indicating stability of measurement over time.

These characteristics support the use of the instrument in research studies examining attitudes toward mental illness and social perceptions of psychiatric disorders.

References

Cohen, J., & Struening, E. L. (1962). Opinions about mental illness in the personnel of two large mental hospitals. The Journal of Abnormal and Social Psychology, 64(5), 349.

Madianos, M., Economou, M., Peppou, L. E., Kallergis, G., Rogakou, E., & Alevizopoulos, G. (2012). Measuring public attitudes to severe mental illness in Greece: Development of a new scale. The European Journal of Psychiatry, 26(1), 55–67.