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 D4
Detailed regression summary tables: MSS data base, White students---page 1 of 5
Significant positive effects: blue square
Significant negative effects: blue diamond
Outcome variable

Learning outcomes: Active thinking

Complex thinking
  Personal
  interactions model  		 Negative
  interactions model  		 Amount of interaction
with students of
      color model      		 Amount of interaction
with African American
  students model  
  r Step 1 Step 2 r Step 1 Step 2 r Step 1 Step 2 r Step 1 Step 2
Classroom diversity  .281 blue square blue square  .281 blue square blue square  .276 blue square blue square  .276 blue square blue square
Informal interaction (model)   .193 blue square blue square -.076      .024      .003    
  Diversity of 6 best
  friends model  		 Participation with
  other groups model  		 Dialogue groups
        model        		 Number of
multicultural events
  attended model  
  r Step 1 Step 2 r Step 1 Step 2 r Step 1 Step 2 r Step 1 Step 2
Classroom diversity  .276 blue square blue square  .280 blue square blue square  .277 blue square blue square  .273 blue square  
Informal interaction (model)   .030      .118      .162 blue square    .207 blue square  

Social historical thinking
  Personal
  interactions model  		 Negative
  interactions model  		 Amount of interaction
with students of
      color model      		 Amount of interaction
with African American
  students model  
  r Step 1 Step 2 r Step 1 Step 2 r Step 1 Step 2 r Step 1 Step 2
Classroom diversity  .331 blue square blue square  .331 blue square blue square  .334 blue square blue square  .334 blue square blue square
Informal interaction (model)   .220 blue square blue square  .018      .064     -.011    
  Diversity of 6 best
  friends model  		 Participation with
  other groups model  		 Dialogue groups
        model        		 Number of
multicultural events
  attended model  
  r Step 1 Step 2 r Step 1 Step 2 r Step 1 Step 2 r Step 1 Step 2
Classroom diversity  .334 blue square blue square  .341 blue square blue square  .334 blue square blue square  .332 blue square  
Informal interaction (model)   .055      .150 blue square blue square  .183 blue square blue square  .306 blue square  
Continue in Table D4   |   Appendix D