**7.1 Population, sample, and sampling techniques**

Thirty out of sixty-seven schools were selected using simple random sampling. This type of sampling was chosen since it provides everyone the equal opportunity of being selected. The 30 schools are in six out of the eight circuits in the selected education district. Of the 30 schools, each had one grade 9 Natural Sciences classroom with one teacher per school. Thirty teachers volunteered to participate in the research study.

#### **7.2 Research instruments**

The data collection instrument was designed, whereby a questionnaire was used, using the four-point Likert scale: agree, neutral, disagree, and no response. The questionnaire attached as Appendix A was designed to measure the promotion of science learning through science content and practical assessment.

The pilot testing was conducted with two teachers using a questionnaire. The present researchers were satisfied with the feedback from the teachers who were involved in the pilot study. The only challenge encountered in the questionnaire was that some questions were ambiguous, and modifications were done.
