The reliability and validity of the trait form of the Depression Adjec
tive Check List (DACL) for Sets 1 and 2 were determined with adolescen
ts in Grades 7 to 9 (Set 1) and Grades 8 to 12 (Set 2). Internal consi
stency, split-half, test-retest, and alternate form reliability were h
igh, as was convergent and discriminant validity. Results of ANOVAs (S
ex x Grade) and subsequent t tests for significant effects are reporte
d. The performances of adolescents on the state and trait forms of Set
1 and Set 2 of the DACL were compared.