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

Four-year learning outcomes: Intellectual and academic skills---page 1 of 2

Average undergraduate grade-point average (self-reported)
    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  .018        .016        .016        .017      
  Informal interaction (model)  .068 blue square      .098 blue square blue square blue square  .037       -.037 blue star blue star  

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  .078 blue square blue square blue square  .079 blue square blue square blue square  .079 blue square blue square blue square  .078 blue square blue square blue square
  Informal interaction (model)  .098 blue square blue square blue square  .143 blue square blue square blue square  .114 blue square blue square blue square -.004      

Academic ability
    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  .023 blue square blue square blue square  .022 blue square      .022 blue square blue square    .022 blue square blue square blue square
  Informal interaction (model)  .054        .131 blue square blue square blue square  .095 blue square blue square    .007      

Writing
    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  .100 blue square blue square blue square  .100 blue square blue square blue square  .101 blue square blue square blue square
  Informal interaction (model)  .107 blue square blue square blue square  .194 blue square blue square blue square  .110 blue square blue square blue square  .009      

Listening ability
    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  .094 blue square blue square blue square  .093 blue square blue square blue square  .094 blue square blue square blue square  .092 blue square blue square blue square
  Informal interaction (model)  .123 blue square blue square blue square  .135 blue square blue square blue square  .132 blue square blue square blue square  .036 blue square blue square blue square
Rest of this section of Table D1   |   Table D1 Menu   |   Appendix D