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Table 1 Concepts, instruments and sources at the different assessment points

From: A multimodal day treatment program for multi-problem young adults: study protocol for a randomized controlled trial

Outcomes Concept Instrument Assessment point Source
T0 T1 T2 T3 Ts Te Y P F R
Primary Recidivism Judicial record          x  
   SRD x   x x    x    
  Self-sufficiency SSM-D x x x x x      x
Secondary Quality of life MANSA x x x x    x    
  School/work Registration system    x x      x  
  Psychopathology ASR x   x x    x    
  Cognitive distortions HIT x x x x    x    
  Substance use MATE x   x x    x    
Moderators (participant characteristics) Demographic factors Demographic questionnaire x x x x    x    
  Intelligence WAIS-III SF   x      x    
   SCIL x       x    
  Criminal history SRD x       x    
   Judicial record          x  
  Motivation VMBa   x x     x    
Moderators (treatment characteristics) Group climate GCIa   x x     x    
  Therapeutic alliance WAVa   x x    x x xb   
  General program characteristics Registration systems (e.g., RMW)          x  
Program integrity DNK Program integrity Self-developed questionnaire       x x x   
  Characteristics and experiences staff Self-developed questionnairec         x   
Cost-effectiveness Costs Cost questionnaire     x    x    
  1. T0 baseline measurement; T1 follow-up at 2 months after start intervention (adherence) or 4 months after T0 (nonadherence); T2 follow-up at 8 months after T0; T3 follow-up at 14 months after T0; Ts measurement of SSM-D at start intervention; Te measurement of program integrity and WAV at the end of intervention (only in the experimental group). Y young adult, P professional, F files/register information, R researcher. ASR Adult Self-report, DNK De Nieuwe Kans, HIT How I Think questionnaire, GCI Group Climate Inventory, MANSA Manchester Short Assessment of Quality of Life, MATE Measurements in the Addictions for Triage and Evaluation, SCIL Screener voor intelligentie en licht verstandelijke beperking, SRD Self-report Delinquency Scale, SSM-D Self-Sufficiency Matrix – Dutch version, VMB Motivation for Treatment Questionnaire–Short Form, WAIS-III SF Wechsler Adult Intelligence Scale - Short Form (third version), WAV Werk Alliantie Vragenlijst
  2. aThese questionnaires are only filled out when the respondent follows the program or has just finished it. bDNK professionals only fill out the WAV at Te. cThis questionnaire will be filled in twice a year for a total of 4 times