Table 2.

Correlation of “out of task” item of the RASS with the other four RASS items and with the total time of left hand movement during the 15 min of RASS observation as measured by the actiwatch. Correlation coefficients and p-values are provided for each of the four measurement occasions.

	Play with object	Out of seat	Vocalization	Fidgeting
Before placebo	0.92 p<0.000	0.48 p<0.000	0.43 p<0.000	0.09 p=.208
After placebo	0.91 p<0.000	0.54 p<0.000	0.42 p<0.000	0.00 p=.989
Before methylphenidate	0.91 p<0.000	0.48 p<0.000	0.43 p<0.000	−0.03 p=0.680
Before methylphenidate	0.90 p<0.000	0.45 p<0.000	0.44 p<0.000	0.03 p=0.711