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Table 2 Results of linear regression analyses predicting frequency of lifestyle NE use

From: Subjective stressors in school and their relation to neuroenhancement: a behavioral perspective on students’ everyday life “doping”

Enhancement attitude (H2) Stress in school (H3)
Predictora ΔR2 β df Predictora ΔR2 β df
Step 1 .006   2, 428 Step 1 .005   2, 432
Sex   -.07 427 Sex   -.06 431
Age   .05 427 Age   .04 431
Step 2 .027**   1, 427 Step 2 .034**   3, 429
NEAS   .17** 426 Pressure to Perform   -.11 428
     Test Anxiety   .02 428
     Overwhelming Demands   .22** 428
Total R2 .034**   3, 427   .039**   5, 429
Total F 18.03**    12.48**  
n b 430     434   
  1. a Test statistic for significance testing of all R2’s and ΔR2’s is the F-statistic, test statistic for significance testing of all β’s is the t-statistic.
  2. b Differences in n and test scores for step one are due to missing values in the respective analyses. ** p < .01.