Beware Of Popular Kids Bearing Gifts: A Framed Field Experiment - Jignan Chen, Daniel Houser, Natalia Montinari, And Marco Piovesan (Interdisciplinary Center For Economic Science, George Mason University) Page 18
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34Table 4. Non-Parametric Tests for the Effect of Popularity and Age on Average Donation
18
Public
Private
Public vs Private
p-value
THE Most Popular Children
1.6 (.75)
0.78 (.28)
0.18
(Popularity Index =1)
N=5
N=9
Old Children
1.88 (.11)
1.62 (.13)
0.03**
N=60
N=52
Young Children
0.65 (.15)
.94 (.12)
0.18
N=31
N=88
Most Popular Children
1.48 (.23)
1.03 (.18)
0.05**
(Upper Quartile)
N=23
N=35
OLD (in grade 3-5)
2.13 (.19)
1.62 (.27)
0.03**
N=15
N=13
YOUNG (in grade 1-2)
.25 (.16)
.68 (.21)
0.13
N=8
N=22
Least Popular Children
1.54 (.22)
1.22 (.17)
0.13
(Lower Quartile)
N=26
N=41
OLD (in grade 3-5)
1.82 (.25)
1.6 (.19)
0.23
N=17
N=15
YOUNG (in grade 1-2)
1 (.24)
1 (.41)
0.49
N=9
N=26
Standard Error reported in the parenthesis, **, *** indicate 5%, 1% significance level, one-sided test.
Next, Table 5 reports the regression results.
Our Probit Regression model is specified as follows:
!ℎ!"#$!
= !
+ !
∗ !"#$%&
(1)
!
!
!
+!
∗ !"#$%&'()!
+ !
∗ !"!
+ !
∗ !"#$ + !
∗ !"#$#%&'!
(2)
!
!
!
!
!
!
!
+!
∗ !"#$%& ∗ !"#$%&'()!
+ !
∗ !"#$%& ∗ !"!
+ !
∗ !"#$%& ∗ !"#$ +
!
!
!
!
!
!!!!!!!!!!!!!!!!!!!!
∗ !"#$%& ∗ !"#$#%&'(
(3)
!
+!
∗ !"#$%&'()!
∗ !"!
+ !
∗ !"#$%&'()!
∗ !"#$%& ∗ !"!
+ !
(4)
!"
!
!
!!
!
!
!
Where !ℎ!"#$!
= 1 if number of silly bands shared ≥ 2
!
!!!!!!!!!!!!!!!!!!!= 0 if number of silly bands shared < 2 ;
!"#$%& is the dummy variable for Public treatment, = 1, if it is Public Treatment, = 0 if it
is Private Treatment;
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
18
We here performed the Mann Whitney test. Here we report one-sided test p-values.
!
16!
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