The effects of matching and mismatching students' time-of-day preferences w
ith their performance on an algebra test were examined. A model based on th
e identification of each student's time-of-day learning-style characteristi
c and congruent and incongruent testing times was used. A 2-factor analysis
of variance was conducted and followed with simple main effects analyses.
On a morning-administered test, students who studied in the morning scored
higher than (a) morning-preferenced students who took the test in the after
noon, (b) students studying in the afternoon, and (c) students studying in
the evening. On an afternoon-administered test, students studying in the af
ternoon scored higher, at a level approaching statistical significance, tha
n those who studied in the morning. Implications of the findings are sugges
ted.