Amin Al Haadi Bin ShafieHishamuddin Bin Abdul WahabNurul Ashikin Binti Ahmat MiskamMohd Rushdan Bin Mohd JailaniMohd Khairul Anuar Bin RahimiNurhafizah Binti Mohd SukorSiti Nubailah Binti Mohd Yusof2024-05-272024-05-2720171818-495210.5829/idosi.wasj.2017.2394.2400https://www.idosi.org/wasj/wasj35(11)17/16.pdfhttps://oarep.usim.edu.my/handle/123456789/4037Volume 35 Number 11There are a huge number of drug abusers grappling with recovery process and it reflects that individuals hold a great deal with the difficult circumstances, thus necessitating the vast range of literatures on the study of humans' locus of control academically. However, the instruments for measuring it among the drug inmates are still scarce. Therefore, this study examines the reliability and validity of ACREDA Drug- Related Locus of Control among Malaysians. The scale consists of 19 items where 15 of them were translated from DR-LOC Scale by Elizabeth Hall (2001) into Malay language by two counselling experts by using back translation method and the rest 4 were newly constructed ad hoc covering due to the cultural adaption factor. Its validity was examined by sampling the total of 80 clients from the selected drug rehabilitation centers in Malaysia and the face validity was undergone by 2 counselling experts for scale validation. Its reliability revealed the Cronbach`s alpha, 0.823 indicating a high reliability reading while the split- half reliability showed Cronbach's alpha of 0.774 for part 1 and 0.768 for part 2 making this scale reliable and suitable to be used in Malaysian population.en-USReliability, Validity, DR-LOC, ACREDA, Back Translation, Cross-CultureArticle239424003511