Moser shares the concern, noted above, that the SCAT2 has not been adequately validated
as a
diagnostic tool, and says that she has «personally found it to be of limited
value in her clinical practice.»
Key Question # 1 (accuracy of screening
tools): Studies on the accuracy of screening
tools will be included if they compared a screening instrument with a valid criterion standard, defined
as a DSM diagnosis of MDD or an ICD diagnosis of depressive episode based on a validated
diagnostic interview procedure, and if they reported data allowing determination of sensitivity and specificity, positive predictive
value, and negative predictive
value.