Table 1 Summary of hierarchical multiple regression analysis with percent of trials with food transfer as criterion (N = 96).

From: Altruistic food sharing behavior by human infants after a hunger manipulation

Regression step

Predictor variable

b

SE

t

ΔR2

P

Step 1

Group

29.69

6.25

4.75

0.19

0.000007

Step 2

   

2.54

0.10

0.002

 

Siblings

13.83

6.18

2.24

 

0.028

 

Ethnic-cultural background

30.77

10.21

3.02

 

0.003

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