This study aimed to assess the concurrent validity of the Malay version of the Perceived Stress Scale (PSS-10) PSS-10 item. Methods: A crosssectional study was conducted among all students in a medical faculty in Malaysia. The questionnaire included three parts; socio-demographic correlates, PSS-10 and the validated Malay version of Depression Anxiety and Stress Scale-21 item (DASS-21). Spearman's correlation coefficient was used in the analysis. Stress subscale of DASS -21 correlated positively with the total score of PSS-10 (r= +0.50, p<0.001), positively with the negative subscale of PSS-10 (r=+0.36, p<0.001) and negatively with the positive subscale of PSS-10 (perceived coping) (r= -0.33, p<0.001). Conclusion: The Malay Version of PSS-10 has fair correlation with the stress subscale of DASS-21. This confirmed the concurrent validity of this scale, which further strengthened the previous evidence that the Malay version of PSS-10 was a valid tool to measure stress in Malaysian university students. ASEAN Journal of Psychiatry, Vol. 15 (1): January – June 2014: 8-13.
Stress, Psychological ; Students, Medical

Introduction: Self-efficacy for eating predicts successful weight loss and maintenance in Type 2 Diabetes Mellitus (T2DM) individuals. The Weight Efficacy Lifestyle (WEL) questionnaire determines self-efficacy for controlling eating. This study aims to validate the Malay-translated version of the WEL questionnaire and to establish the cut-off scores to define the level of eating self-efficacy in Malaysian T2DM individuals. Methods: A total of 334 T2DM individuals, aged 55.0±9.0 years, were recruited from a primary healthcare clinic based on sampling ratio. Medical records were reviewed for eligibility. Inclusion criteria included BMI ≥23kg/m2, and no severe diabetes complications. The WEL questionnaire assessed eating resistance during negative emotions, food availability, social pressure, physical discomfort and positive activities, and was back translated into Malay language. Self-efficacy was rated on a 0-9 scale with higher WEL scores indicating greater self-efficacy to resist eating. Factor analysis established the factor structure of the WEL questionnaire. Inter-item and item-total correlations determined construct validity while internal consistency described the reliability of the structure. Results: A two-factor structure accounting for 49% of variance was obtained, and it had adequate reliability, as indicated by Cronbach’s α of 0.893 and 0.781 respectively. Item-total correlations of r>0.700, p<0.01 and inter-item correlations of r<0.500, p<0.01 demonstrated construct validity. Cut-off scores of ≥44 and ≥32, respectively for factor one and two defined high eating self-efficacies in T2DM individuals. Conclusion: The Malaytranslated version of the WEL questionnaire appears to be a valid and reliable tool to assess self-efficacy for controlling eating behaviour in Malaysian T2DM population.