EXPERT REPORT OF PATRICIA GURIN
Gratz, et al. v. Bollinger, et al., No. 97-75321 (E.D. Mich.)
Grutter, et al. v. Bollinger, et al., No. 97-75928 (E.D. Mich.)
Table D2
Detailed regression summary tables: CIRP data base, African American students
Significant positive effects: blue square
Significant negative effects: blue diamond
Outcome Variable
Four-year learning outcomes: Engagement and motivation

Graduate degree aspirations
    Workshop model     Discussion model     Socializing model   Same race: Close friends
in college model
  Predictors r Step 1 Step 2 Step 3 r Step 1 Step 2 Step 3 r Step 1 Step 2 Step 3 r Step 1 Step 2 Step 3
  Classroom  .150  .150  .150  .150
  Informal interaction (model)  .139  .199 blue square blue square  .033  -.015

Drive to achieve
    Workshop model     Discussion model     Socializing model   Same race: Close friends
  in college model  
  Predictors r Step 1 Step 2 Step 3 r Step 1 Step 2 Step 3 r Step 1 Step 2 Step 3 r Step 1 Step 2 Step 3
  Classroom -.065       -.065       -.065       -.065      
  Informal interaction (model)  .167 blue square blue square blue square  .041        .071        -.060      

Self-confidence (intellectual)
    Workshop model     Discussion model     Socializing model   Same race: Close friends
  in college model  
  Predictors r Step 1 Step 2 Step 3 r Step 1 Step 2 Step 3 r Step 1 Step 2 Step 3 r Step 1 Step 2 Step 3
  Classroom  -.049  -.049  -.049  -.049
  Informal interaction (model)  .041  -.038  .127  -.093

Write original works (poems, novels, short stories, etc.)
    Workshop model     Discussion model     Socializing model   Same race: Close friends
  in college model  
  Predictors r Step 1 Step 2 Step 3 r Step 1 Step 2 Step 3 r Step 1 Step 2 Step 3 r Step 1 Step 2 Step 3
  Classroom  .092  .084  .084  .092
  Informal interaction (model)  .060  .107  .134  -.127

Create artistic works (painting, sculpture, decorating, etc.)
    Workshop model     Discussion model     Socializing model   Same race: Close friends
  in college model  
  Predictors r Step 1 Step 2 Step 3 r Step 1 Step 2 Step 3 r Step 1 Step 2 Step 3 r Step 1 Step 2 Step 3
  Classroom  .055  .054  .054  .055
  Informal interaction (model)  .127 blue square blue square blue square  .127 blue square  .031  -.083

Preparation for graduate/professional school
    Workshop model     Discussion model     Socializing model   Same race: Close friends
  in college model  
  Predictors r Step 1 Step 2 Step 3 r Step 1 Step 2 Step 3 r Step 1 Step 2 Step 3 r Step 1 Step 2 Step 3
  Classroom  -.045  -.054  -.054  -.045
  Informal interaction (model)  .005  .100  .093  -.032

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