Psychometric evaluation of the Amphetamine Cessation Symptom Assessment.
Testing of a new scale, the Amphetamine Cessation Symptom Assessment (ACSA), in a sample of treatment-seeking amphetamine users (N = 133) showed satisfactory reliability, while factor analysis identified three components explaining 64.7% of the variance in scores. Scores were inversely related to subjective general well-being (r = -.33, p < .01) and directly related to the Beck Depression Inventory (r = .59, p < .01). There were positive relationships between the ACSA and measures of amphetamine dependence (r = .36, p < .01) and the intensity of recent amphetamine use (r = .24, p < .01). The ACSA discriminated between "low-dose" and "high-dose" users, indicating discriminant validity. In inpatients (n = 63), ACSA scores declined significantly over time, while higher scores in inpatient treatment dropouts indicated predictive validity. The ACSA showed satisfactory reliability and validity, with a three-factor solution providing the best fit to the data. The ACSA could play an important role in providing clinical outcome data, particularly in outcome evaluation of new treatment protocols.
McGregor
Catherine
C
Drug and Alcohol Office, Perth, Western Australia, Australia. catherine.mcgregor@health.wa.gov.au
Srisurapanont
Manit
M
Mitchell
Amanda
A
Longo
Marie C
MC
Cahill
Sharon
S
White
Jason M
JM
D000328:Adult; D000661:Amphetamine; D039721:Diagnostic and Statistical Manual of Mental Disorders; D005163:Factor Analysis, Statistical; D005260:Female; D006801:Humans; D008297:Male; D011594:Psychometrics; D015203:Reproducibility of Results; D019966:Substance-Related Disorders / Q000175:diagnosis* / Q000534:rehabilitation*; D011795:Surveys and Questionnaires
D000661:Amphetamine