Groupings | N | M | SD | Sum of Squares | df | Mean Square | F | p | |
---|---|---|---|---|---|---|---|---|---|
Age | |||||||||
9–10 years | 87 | 1.839 | .845 | Between | 3.196 | 4 | .799 | 1.303 | .27 |
11 years | 75 | 1.684 | .744 | ||||||
12 years | 55 | 1.791 | .781 | Within | 183.425 | 299 | .613 | ||
13 years | 52 | 1.845 | .818 | ||||||
14–15 years | 35 | 2.040 | .639 | Total | 186.622 | 303 | |||
Total | 304 | 1.816 | .785 | ||||||
Race ‡ | |||||||||
African American/Black | 69 | 1.737 | .914 | Between | 6.505 | 4 | 1.626 | 2.700 | .03ns |
Hispanic/Latino(a) | 21 | 1.552 | .869 | ||||||
Caucasian/White | 177 | 1.929 | .716 | Within | 180.116 | 299 | .602 | ||
Mixed & Others | 25 | 1.525 | .782 | ||||||
Missing | 12 | 1.675 | .555 | Total | 186.622 | 303 | |||
Total | 304 | 1.816 | .785 | ||||||
Socioeconomic Status | |||||||||
lower 0–49 points | 86 | 1.615* | .852 | Between | 8.720 | 3 | 2.907 | 4.941 | .00* |
low middle 50–69 points | 84 | 1.825 | .767 | ||||||
upper middle 70–89 points | 76 | 1.825 | .744 | Within | 175.889 | 299 | .588 | ||
upper 90–99 points | 57 | 2.119* | .652 | ||||||
Total | 303 | 1.821 | .782 | Total | 184.609 | 302 | |||
Residence | |||||||||
So Arizona/California | 84 | 1.812 | .755 | Between | 1.166 | 4 | .291 | .470 | .76 |
North western Ohio | 27 | 1.859 | .803 | ||||||
Northern Lower Michigan | 14 | 1.986 | .523 | Within | 185.456 | 299 | .620 | ||
South eastern Michigan | 34 | 1.924 | .948 | ||||||
South central Michigan | 145 | 1.769 | .782 | Total | 186.622 | 303 | |||
Total | 304 | 1.816 | .785 |