Table 3 Comparative analysis of the pedagogical subgroups: heterogeneity statistics.

From: A meta-analysis to gauge the impact of pedagogies employed in mixed-ability high school biology classrooms

Study

Average

95% Confidence interval

Heterogeneity

Cohen’s d

Lower limit

Upper limit

p value

Q-value

Df

I2 value

Project-based

0.374

0.137

0.612

0.002

8.115

4

50.71%

Problem-based

0.913

0.511

1.315

0.000

69.52

6

91.37%

Inquiry-based

0.882

0.536

1.227

0.000

62.54

8

87.20%

Blended

0.720

−0.178

1.619

0.116

16.96

2

88.21%

Game-based

0.662

0.335

0.988

0.000

89.90

7

92.21%

Virtual simulation

0.407

0.089

0.724

0.012

4.74

2

57.83%

Argument-based

0.815

0.444

1.185

0.000

4.78

2

58.23%

  1. Note: d = Cohen’s d (standardized difference in mean); Q-value = Cochran’s Q; Df = degree of freedom.