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 D1
Detailed regression summary tables: CIRP data base, White 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   Close friends in college
  were diverse 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  .046 blue square blue square blue square  .047 blue square blue square    .047 blue square blue square blue square  .046 blue square blue square blue square
  Informal interaction (model)  .019 blue square      .067 blue square blue square blue square  .047 blue square blue square blue square  .007      

Analytical and problem-solving skills
    Workshop model     Discussion model     Socializing model   Close friends in college
  were diverse 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  .005        .005        .005        .005      
  Informal interaction (model)  .028        .074 blue square blue square blue square  .071 blue square blue square blue square  .013      

Ability to think critically
    Workshop model     Discussion model     Socializing model   Close friends in college
  were diverse 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  .079 blue square blue square blue square  .080 blue square blue square blue square  .080 blue square blue square blue square  .079 blue square blue square blue square
  Informal interaction (model)  .100 blue square blue square blue square  .166 blue square blue square blue square  .110 blue square blue square blue square  .036      

Writing skills
    Workshop model     Discussion model     Socializing model   Close friends in college
  were diverse 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  .102 blue square blue square blue square  .102 blue square blue square blue square  .103 blue square blue square blue square  .102 blue square blue square blue square
  Foreign language sills  .117 blue square blue square blue square  .170 blue square blue square blue square  .071 blue square blue square    .016      

Foreign language skills
    Workshop model     Discussion model     Socializing model   Close friends in college
  were diverse 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  .138 blue square blue square blue square  .138 blue square blue square blue square  .137 blue square blue square blue square  .139 blue square blue square blue square
  Informal interaction (model)  .112 blue square blue square blue square  .146 blue square blue square blue square  .109 blue square blue square blue square  .099 blue square blue square blue square
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