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International Journal of STEM Education

Table 1 Research design: quasi-experimental design delayed approach

From: Increasing high school teachers self-efficacy for integrated STEM instruction through a collaborative community of practice

 

Cohort 1

Cohort 2

Cohort 3

Year 1

Treatment group

Control group

 

Full teacher and student pretest/posttest & follow-up data collection

Teacher and student pretest/posttest (no PD until year 2)

Year 2

 

Treatment group

Control group

Full teacher and student pretest/posttest & follow-up data collection

Teacher and student pretest (no PD until year 3)

Year 3

  

Treatment group

Full teacher and student pretest/posttest & follow-up data collection

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