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 D3
Detailed regression summary tables: CIRP data base, Latino students
Significant positive effects: blue square
Significant negative effects: blue diamond
Outcome Variable

Nine-year learning outcomes: Valued skills

General knowledge
    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  .135 blue square      .126        .126        .125   blue square  
Informal interaction (model)   .104        .025        .042       -.027      

Analytical and problem-solving skills
    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  .012        .020        .020        .008      
Informal interaction (model)  .020        .052       -.068        .054      

Ability to think critically
    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  .006       -.026       -.026       -.017      
Informal interaction (model) -.070       -.031       -.026        .039      

Writing skills
    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  .139        .134        .134        .136 blue square    
Informal interaction (model)   .218 blue square blue square    .065       -.011        .110      

Foreign language skills
    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  .333 blue square blue square blue square  .331 blue square blue square blue square  .331 blue square blue square blue square  .334 blue square blue square blue square
Informal interaction (model)  .213 blue square      .105       -.072        .174      

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