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. Author manuscript; available in PMC: 2014 Dec 1.
Published in final edited form as: Res Sci Educ. 2013 May 3;43(6):10.1007/s11165-013-9358-x. doi: 10.1007/s11165-013-9358-x

Table 2.

Characteristics of the science identity categories

Class 1
Low
N=139		 Class 2
Middle-low
N=306		 Class 3
Middle-high
N=280		 Class 4
High
N=135		 p-value
Gender (% girls) 37% 47% 60% 46% < 0.001
Race (% not White
  or Asian)		 35% 30% 23% 19% < 0.01
Age (mean (sd)) 15.32 (0.70) 15.41 (0.90) 15.26 (0.91) 15.20 (0.97) 0.051
Socioeconomic status
  (SES proxy)		 −0.16 (0.64) −0.10 (0.66) 0.04 (0.62) 0.20 (0.55) < 0.001
Assigned Condition
  (% comic)		 45% 54% 49% 52% 0.291

Note: For the variables gender, race and type of reading material, the p-value is from a chi-square test of association; for age and SES, from a one-way ANOVA F-test.