Variables

Class

N

Mean

SD

t

df

p

Argumentativeness

5th grade

6th grade

132

120

2.88

2.69

0.60

0.65

2.41

250

0.017

Assertiveness

5th grade

6th grade

132

120

2.98

3.22

0.58

0.62

−3.16

250

0.002