Cognitive computer training in children with attention deficit hyperactivity disorder (ADHD) versus no intervention: study protocol for a randomized controlled trial

Table 2 Power estimations for the secondary outcome measures ADHD-RS and BRIEF

Outcome	Minimal relevant difference	SD^a	Sample size	Power assuming an alpha of 1.25 %	Power assuming an alpha of 5 %
ADHD-RS^b (parents-assessed)	5 points	10 points	122	59 %	78 %
ADHD-RS (teacher-assessed)	5 points	10 points	122	59 %	78 %
BRIEF^c (parents-assessed)	0.25 points	0.5 points	122	59 %	78 %
BRIEF (teacher-assessed)	0.25 points	0.5 points	122	59 %	78 %

Legend:
^aSD, standard deviation
^bADHD-RS, attention deficit hyperactivity disorder rating scale. Minimal relevant difference and SD calculated from a previous pilot project (Bikic et al. unpublished data)
^cBRIEF, Behavior Rating Inventory of Executive Functions. Minimal relevant difference and SD calculated from the BRIEF professional manual [68]

ISSN: 1745-6215