Preliminary preparation. After the problems were identified, a survey of related researches was conducted to identify common teaching practices relevant to the present study in Philippine setting. The checklist items on teaching effectiveness were carefully drawn from the ideas in different researches.
Questionnaire validation. There was a need to pretest the professional teaching practices and the teaching effectiveness items to validate the tools. The content specification of the questionnaire supports content validity. Field-testing the questionnaire with ten teachers from other schools and districts resulted in removing ambiguous items. Testing the questionnaire registered a reliability index of .67 indicating that the questionnaire was Moderately reliable (computation in Appendix B). The questionnaire was administered twice to the same group in a span of two weeks. The Spearman rank correlation coefficient or Spearman rho was used to correlate the two sets of scores (Calmorin & Calmorin, 1997).
Administration of the instrument. After the questionnaires were validated and finalized, they were reproduced for distribution after approval of this study was secured.
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