Table 2.

Stated hypotheses and confirmed hypotheses for construct validity of the BBT.

Stated hypotheses	Expected correlations	Findings	Confirmed hypothesis
a. Positively strong correlation between dexterity subtest of the MA2 and the BBT	r > 0.7	r = 0.78	Yes
b. At least positively moderate correlations between the other subtests of the MA2 and the BBT	rs > 0.5	rs = 0.65–0.74	Yes
c. At least positively weak correlation between the BOT-2 and the BBT	r > 0.3	r = 0.49	Yes
d. At least positively weak correlations between the PMAL-R (AOU and QOM) and the BBT	r > 0.3	r = 0.51–0.54	Yes

AOU amount of use, BBT box and block test, BOT-2 Bruininks–Oseretsky test of motor proficiency, 2nd edition, MA2 Melbourne assessment 2, PMAL-R pediatric motor activity log-revised, QOM quality of movement.