Chow's (1996) defense of the null-hypothesis significance-test procedu
re (NHSTP) is thoughtful and compelling in many respects. Nevertheless
, techniques such as meta-analysis, power analysis, effect size estima
tion, and confidence intervals can he useful supplements to NHSTP in f
urthering the cumulative nature of behavioral research, as illustrated
by the history of research on the spontaneous recovery of verbal lear
ning.