Table 2.

Summary of CWMT studies reviewed

Study	ADHD Formally Diagnosed?	Sample Demographics	N (age range, years)	Gender (% male)	Nathan and Gorman (2002) Criteria for Quality of Study Design and Explanation for Classification
Klingberg et al. 2002	Yes	% medicated: 36 Subtype: N/A Additional Diagnoses: N/A Family/Youth Characteristics: N/A	14 (7–5)	79	Type 2 (did not assess ADHD outcomes; did not utilize state-of-the-art assessment procedures for ADHD diagnosis- diagnoses made by pediatricians using DSM criteria but unknown if parent and teacher reports were collected directly)
Klingberg et al. 2005	Yes	% medicated: 0 Subtype: 38 CT; 15 IT Additional Diagnoses: N/A Family/Youth Characteristics: N/A	53 (7–2)	83	Type 1 (utilized state-of-the-art assessment procedures for ADHD diagnosis; assessed ADHD outcomes; between group design with treatment comparison group)
Beck et al. 2010	Yes	% medicated: 61 Subtype: 29% CT, 71% IT Additional Diagnoses: 46% ODD/CD; 39% ANX; 8% mood disorder Family/Youth Characteristics: 96% Caucasian	52 (7–7)	69	Type 2 (waitlist control design)
Holmes et al. 2010	Yes	% medicated: 100 Subtype: 100% CT Additional Diagnoses: N/A Family/Youth Characteristics: N/A	25 (8–1)	84	Type 3 (did not include state-of-the-art assessment for ADHD diagnosis --diagnoses made by pediatricians using DSM criteria but unknown if parent and teacher reports were collected directly; did not assess ADHD outcomes)
Mezzacappa & Buckner 2010	No official diagnosis	% medicated: 0 Subtype: no official diagnosis Additional Diagnoses: N/A Family/Youth Characteristics: 100% ethnic minority; 100% low SES	9 (8–1)	67	Type 3 (open trial; did not use ADHD diagnosis for inclusion)
Gray et al. 2012	Yes (+LD)	% medicated: 98 Subtype: N/A Additional Diagnoses: N/A Family/Youth Characteristics: N/A	60 (12–7)	87	Type 2 (did not utilize state-of-the-art assessment procedures for ADHD diagnosis - diagnosis made in the community before entering study)
Green et al. 2012	Yes	% medicated: 38 Subtype:: 42% CT, 50% IT, 2% H/I Additional Diagnoses: 0% ODD; Family/Youth Characteristics: 65% Caucasian	26 (7–4)	65	Type 2 (did not utilize state-of-the-art assessment procedures for ADHD diagnosis - no direct teacher ratings for diagnosis)

ANX – Anxiety Disorder; CD – Conduct Disorder; CT – Combined Type; H/I – Hyperactive/Impulsive Type; IT – Inattentive Type; LD – Learning Disorder; N/A – not available; ODD – Oppositional Defiant Disorder; SES – Socioeconomic Status