title: Psychometric evaluation of the Amphetamine Cessation Symptom Assessment.
abstract: 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.
authors.affiliation: Drug and Alcohol Office, Perth, Western Australia, Australia. catherine.mcgregor@health.wa.gov.au
authors.forename: Catherine
authors.initials: C
authors.lastname: McGregor
authors.forename: Manit
authors.initials: M
authors.lastname: Srisurapanont
authors.forename: Amanda
authors.initials: A
authors.lastname: Mitchell
authors.forename: Marie C
authors.initials: MC
authors.lastname: Longo
authors.forename: Sharon
authors.initials: S
authors.lastname: Cahill
authors.forename: Jason M
authors.initials: JM
authors.lastname: White
mesh_terms: 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
chemical_list: D000661:Amphetamine