title: Consistency and construct validity of the Activity Card Sort (modified) in measuring activity resumption after stem cell transplantation.
abstract: OBJECTIVE
  We assessed the psychometrics of a self-administered survey modification of the Activity Card Sort (modified; ACSm) when used to track activity resumption after stem cell transplantation (SCT).
  
  
  METHODS
  Thirty-six participants completed the ACSm for a descriptive pilot study of recovery after SCT. Reliability was assessed by determining the longitudinal consistency of participants' designation of an activity as never done versus done previously and by calculating internal consistency. Construct validity was assessed by correlating the ACSm scores with measures of quality of life, performance status, and perceived cognitive impairment.
  
  
  RESULTS
  Participants gave consistent designations for 72% of items. Internal consistency of the total score was alpha > 0.86 at all assessments. The ACSm scores were correlated with quality of life (r = 0.51, p = .0019), functional well-being (r = 0.59, p = .0002), and performance status (r = 0.42, p = 0.011) and not associated with cognitive impairment (r = .22, p = .19).
  
  
  CONCLUSIONS
  The ACSm demonstrated provisional evidence of reliability, internal consistency, and construct validity.
authors.affiliation: Department of Psychiatry, Dartmouth Medical School, Hanover, NH, USA. Kathleen.d.lyons@dartmouth.edu
authors.forename: Kathleen Doyle
authors.initials: KD
authors.lastname: Lyons
authors.forename: Zhongze
authors.initials: Z
authors.lastname: Li
authors.forename: Tor D
authors.initials: TD
authors.lastname: Tosteson
authors.forename: Kenneth
authors.initials: K
authors.lastname: Meehan
authors.forename: Tim A
authors.initials: TA
authors.lastname: Ahles
mesh_terms: D000328:Adult; D004185:Disability Evaluation; D005260:Female; D006801:Humans; D007899:Leisure Activities; D008297:Male; D008875:Middle Aged; D020127:Recovery of Function; D033581:Stem Cell Transplantation
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