Reliability and validity of drug use items differing in the nature of their response options.
Hays
R D
RD
Huba
G J
GJ
D000293:Adolescent; D000328:Adult; D000368:Aged; D005260:Female; D006801:Humans; D013287:Illicit Drugs / Q000008:administration & dosage*; D008297:Male; D008875:Middle Aged; D011619:Psychotropic Drugs / Q000008:administration & dosage*; D013223:Statistics as Topic
D013287:Illicit Drugs; D011619:Psychotropic Drugs