Psychometric Properties of the Locus of Control of Behaviour Scale (LCBS) among Australians Seeking Alcohol and Other Drug (AOD) Treatment

Comparison of Attachment Styles, Family Functioning and Locus of Control in Individuals with and without Alcohol Use Disorder

This study aims to examine the variables of attachment styles , family functioning, and locus of control in individuals with and without alcohol use disorder. The 54 participants, including 51 male and 3 females with alcohol use disorder between the ages of 18-60s were chosen from the outpatients of xx service, the attendants of xx meetings, and the people referred by them. The control group consisted of 60 participants who were similar to the study group in terms of age and gender variables, without alcohol use disorder and psychological disorder. Data were collected through a questionnaire including Sociodemographic Data Form, Michigan Alcoholism Screening Test (MAST), Experiences in Close Relationships - Revised (ECR -R), Family Assessment Device (FAD), and Rotter’s Locus of Control Scale (LCS). In the results of the study, it was found that the participants with alcohol use disorder had a significantly higher ECR-R anxiety and avoidance score, and LCS score than the control group. Participants with the alcohol use disorder had a considerably lower FAD score than the control group. Finally, the effects of the applied scales on alcohol addiction are analyzed and it was concluded that the scores of FAD and LCS had a statistically significant effect on alcohol addiction. Accordingly, an increase in the FAD score by one unit reduces the alcohol addiction risk by %95, while an increase in the LCS score by one unit increases the alcohol addiction risk by %31.

Applicability of the locus of control of behaviour scale for people with dementia

OBJECTIVE

To investigate the applicability of the Locus of Control of Behaviour scale (LoCB) for people with dementia.

METHOD

A sample of 534 participants with dementia (78.4 mean age, 58% female) were included. Assessment included the LoCB, the Montgomery-Aasberg Depression Rating Scale (MADRS), the Mini-Mental Status Examination Norwegian revised (MMSE-NR) and the Instrumental Activities of Daily Living (I-ADL). Completion percentages and internal reliability of LoCB were examined for predefined MMSE-NR groups (0-4, 5-9, 10-14, 15-19, 20-24, 25-27, and 28-30). Factors associated with completion were analysed, and a principal component analysis (PCA) of the LoCB was performed. Sum score and component subscale scores were compared to MADRS and MMSE-NR scores.

RESULTS

In total, 234 participants completed the LoCB. Completion percentages ranged from 74% (MMSE-NR 28-30) to 0% (MMSE-NR 0-9). Internal reliability was between 0.80 and 0.72 in groups with MMSE-NR > 9, except in MMSE-NR 20-24 (0.52). Age, MMSE-NR and education were associated with completion. The PCA yielded three components - powerful others, internal, and luck/fate - with explained variance of 41.3%. Participants with MADRS > 7 scored higher on the LoCB sum score, powerful others and internal subscale scores. No difference was found regarding the luck/fate subscale score. MMSE-NR did not affect LoCB scores.

CONCLUSION

Older age, less education, and more cognitive impairment decreased the likelihood of completion. However, psychometric test results indicate that those who completed the LoCB understood the questions, even with severe cognitive impairment. We conclude, therefore, that the LoCB is applicable for investigating control orientation among people with dementia.