Table 5.

Reviewers’ judgments on the correctness of drug use periods (drug use period test)

Periods		Reviewer HT			Total
		Correct	Error	Not Solvable
Reviewer MK	Correct	635	36	10	681
	Error	82	84	2	168
	Not Solvable	23	4	124	151
Total		740	124	136	1000