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The hypotheses tested in this study evolved from a consideration of many ideas presented in the literature review. One of these that was particularly significant was the use of one high inference and one low inference instrument to test effectiveness of a module. Another important consideration was Turner's Criteria Level 2.
Instrumentation
As recommended by Rosenshine and Furst, a student questionnaire was designed as a high-inference measure and an observation instrument was used as a low inference measure to record change in teacher and student behavior (52:58). Low inference measures focus upon specific, denotable, relatively objective behaviors. High inference measures contain items which require that an observer infer these constructs from a series of events (52:42).
With the advice of a specialist in interaction analysis an observation system was constructed that would measure the objectives of the module. The Student Interest Observation Instrument was designed to determine teachers' change in behavior following mastery of the skills incorporated in the module. The instrument was adapted from Bob Burton Brown's Teacher Practices Observation Record (57).