Table 3.

Descriptive statistics of change scores

Baseline adjusted change scoresa	Mean	Median	SD	Skewness	Kurtosis
Change in PALb (errors)	−1.52e−09	0.189	1.45	−1.2	6.1
Change in DMS (ms)	1.87e−06	152	940	−1.3	7.2
Change in PRM (ms)	−8.80e−07	70.7	493	−1.5	7.4
Change in SSP (span)	2.45e−09	−0.13	0.944	0.1	−3.9
Change in SWM (errors)	−2.28e−10	0.003	14.1	−0.2	3.2
Change in RTIS (ms)	1.07e−08	8.29	49.5	−2.7	19.2
Change in RTIFC (ms)	−1.80e−09	6.41	46.7	−0.3	3.0

^aAll change scores are adjusted for baseline score

^bDifference in the square root of PAL errors adjusted for baseline score