2.2.6. Test administration
At the age of 54 months, whenmultiple assessments were conducted,
testing was carried out in the lab and the order of administration
was fixed across children. First, children completed several subtests of
theWJ-R (including themeasure of short-termmemory andmathematics
performance). This was followed by a 20-minute play break, after
which the CPT was administered. Following the CPT, several additional
tasks were completed, although the data from these tasks (e.g., social
problem solving) were not relevant to the present investigation. The
PLS was administered in the lab on a separate day. Subsequent mathematics
assessments in grades 1, 3, and 5 were also administered in the
lab.