Skip to Main Content
Table 1. 

Demographics and Individual Differences Information for Category Learning and Memory Span Tasks

Long CarriersShort Homozygotes
Category Learning 
General Sample 
 Age, years 19.29 (2.28) 19.33 (2.66) 
 Years of education 12.93 (1.54) 12.94 (1.35) 
 Sex F = 32; M = 17 F = 95; M = 43 
 BIS-11† 65.67 (8.51) 62.96 (8.45) 
 CESD 17.69 (10.55) 15.91 (9) 
 Ethnicity 
  Hispanic 17 24 
  Non-Hispanic 32 112 
  Decline 
 Race 
  White 36 79 
  Asian 40 
  Decline 
  Other 18 
Screened Sample 
 Age, years 24.77 (4.44) 24.88 (4.5) 
 Years of education 15.68 (2.63) 15.23 (2.27) 
 Sex F = 20; M = 11 F = 93; M = 77 
 BIS-11** 69.33 (4.82) 72.55 (4.9) 
 CESD† 6.3 (5.17) 8.71 (6.54) 
 Ethnicity 
  Hispanic 34 
  Non-Hispanic 20 132 
  Decline 
 Race 
  White 22 102 
  Asian 40 
  Decline 
  Other 21 
 
Memory Span 
Age, years 24.66 (4.42) 24.81 (4.44) 
Years of education 15.59 (2.55) 15.33 (2.31) 
Sex F = 19; M = 13 F = 97; M = 64 
BIS-11** 69.68 (4.67) 72.12 (4.76) 
CESD† 6.81 (5.24) 9.03 (6.73) 
Ethnicity 
 Hispanic 31 
 Non-Hispanic 22 129 
 Decline 
Race 
 White 23 95 
 Asian 38 
 Decline 
 Other 21 
Long CarriersShort Homozygotes
Category Learning 
General Sample 
 Age, years 19.29 (2.28) 19.33 (2.66) 
 Years of education 12.93 (1.54) 12.94 (1.35) 
 Sex F = 32; M = 17 F = 95; M = 43 
 BIS-11† 65.67 (8.51) 62.96 (8.45) 
 CESD 17.69 (10.55) 15.91 (9) 
 Ethnicity 
  Hispanic 17 24 
  Non-Hispanic 32 112 
  Decline 
 Race 
  White 36 79 
  Asian 40 
  Decline 
  Other 18 
Screened Sample 
 Age, years 24.77 (4.44) 24.88 (4.5) 
 Years of education 15.68 (2.63) 15.23 (2.27) 
 Sex F = 20; M = 11 F = 93; M = 77 
 BIS-11** 69.33 (4.82) 72.55 (4.9) 
 CESD† 6.3 (5.17) 8.71 (6.54) 
 Ethnicity 
  Hispanic 34 
  Non-Hispanic 20 132 
  Decline 
 Race 
  White 22 102 
  Asian 40 
  Decline 
  Other 21 
 
Memory Span 
Age, years 24.66 (4.42) 24.81 (4.44) 
Years of education 15.59 (2.55) 15.33 (2.31) 
Sex F = 19; M = 13 F = 97; M = 64 
BIS-11** 69.68 (4.67) 72.12 (4.76) 
CESD† 6.81 (5.24) 9.03 (6.73) 
Ethnicity 
 Hispanic 31 
 Non-Hispanic 22 129 
 Decline 
Race 
 White 23 95 
 Asian 38 
 Decline 
 Other 21 

Standard deviations are listed in parentheses where appropriate.

*Significant at p < .05.

**Significant at p < .01.

***Significant at p < .001.

†Marginally significant at p < .10.

Close Modal

or Create an Account

Close Modal
Close Modal