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Table 1 Degrees of freedom (df), I2, information criteria, and likelihood ratio (LR) tests for meta-predictors in second-stage multivariate regression models of Case Study 1. The last model selected by forward stepwise procedure includes only population size and unemployment

From: Extended two-stage designs for environmental research

  

df

I2 (%)

AIC

BIC

LR test

(p-value)

Model 0

Intercepts

14

61.5

-520.60

-463.64

 

Model 1

 + population size

18

53.3

-529.81

-456.57

0.002

Model 2

 + education

18

58.1

-530.26

-456.80

0.002

Model 3

 + unemployment

18

55.7

-536.24

-463.11

 < 0.0001

Model 4

Full model

26

48.3

-539.60

-433.82

 

Model 5

Stepwise-selected model

22

49.7

-543.67

-454.16