“…pil acts or behaviors (Mitzel, 1960;Ryans, 1957Ryans, , 1960. Some of us go on to postulate quantitative or functional relationships between kinds of teacher behavior and pupil behavior-assuming that more of a certain kind of teacher behavior will result in more effective pupil behavior-and proceed to gather data and evaluate the evidence (Anderson & Brewer, 1946;Christensen, 1960;Cogan, 1958;Gnagney, 1960;Jayne, 1945;Withall, 1952;and others). However, such functional relationships are not easy to demonstrate empirically, partly because of difficulties of observation and mensuration and, undoubtedly, partly because of the complex interactions among teacher and pupil characteristics (Ryans, 1956).…”