By the end of his long life, B. F. Skinner (1904-1990) had become one of
the most influential and best known of psychologists (Gilgen, 1982;
Heyduke & Fenigstein, 1984). An important feature of the approach to the
study of behavior that he championed, behavior analysis, is the
intensive study of individual subjects over time. This approach, which
is characterized by the use of within-subject experimental designs,
repeated and direct measures of behavior, and graphic analysis of data,
stands in marked contrast to the research methods favored by many
nonbehavioral psychologists. Skinner discussed the advantages of his
approach in a number of books (e.g., Skinner, 1938, 1953, 1979), but
never devoted a book to methodology. Sidman (1960) and Johnson and
Pennypack (1993b) did devote books to behavior analytic research
methodology. These books are of excep- tionally high quality and should
be read carefully by anyone interested in behavior analysis. They are
sophisticated, however, and are not easy reads for most neophyte
behaviorists. Introductory-level books devoted entirely to methods of
applied behavior analysis (e.g., Kazdin, 1982; Barlow & Hersen, 1984)
are easier to understand, but somewhat limited in coverage.