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Table 4 Students pH science ideas across an evolving explanation (n = 51)*

From: Supporting the development of scientific understanding when constructing an evolving explanation

  

Mean

SD

Effect Size

Cohen’s dav

pH Ex1

Before Explanation framework

1.18

.79

 

pH Ex2

After Explanation Framework

2.51

1.30

Ex1-Ex2: 1.27

pH Ex3

After Feedback

4.08

1.59

Ex2-Ex3: 1.08

pH Ex4

After Additional Feedback

4.78

1.40

Ex3-Ex4: 0.47

 

Exp 4 compared to Exp 1 (before framework)

  

Ex4-Ex1: 3.27

 

Exp 4 compared to Exp 2 (after framework)

  

Ex4-Ex2: 1.16

  1. *51 students completed all four iterations of the explanation that include pH