1. CULTURAL DIVERSITY IN NEW YORK CITY CLASSROOMS CULTURAL DIVERSITY IN NEW YORK CITY CLASSROOMS Selecting Efficient Instructional Techniques for Culturally Diverse Classroom Selecting Efficient Instructional Techniques for Culturally Diverse Classrooms Svetlana Khvatikova and Marva Rudder Research 2 Spring 2012

2. Table of Contents  Research Design (Slide 3 )  Threats to Internal Validity (Slide 4)  Threats to External Validity ( Slide 5)  Proposed Data Analysis Survey/Pre Test Correlation(Slide 6)  Pre-Test and Proposed Test Scores (Slide 7-8)  Student Correlation (Slide 9-10)  Sample of Student Surveys (Slide 11)  References (Slide 12)

3. Research Design Research Design: Quasi-Experimental design  Nonequivalent Control Group Design  Symbolic Design : O X 1 O O X 2 O O - Pre-test X 1 - Treatment for Group 1 X 2 - Treatment for Group 2 O - Post-test

4. Threats to Internal Validity  History  Maturation  Mortality  Statistical Regression  Selection-Maturation Selection

5. Threats to External Validity  Ecological  Generalizable Conditions  Specificity of Variables  Multiple Treatments  Experimenter Effects

6. Proposed Data Analysis Survey/Pre-test Correlation 0.47 rxy 0.59 rxy

7. Pre-test and Proposed Post-test Scores StudentsMarchApril Student 1 7578 Student 2 4570 Student 3 6691 Student 4 7895 Student 5 6799 Student 6 5479 Student 7 4970 Student 8 7289 Student 9 4587 Student 10 7696 Student 11 5589 Student 12 7589 Student 13 7392 Student 14 7890 Student 15 7889 Student 16 8089 Student 17 8097 Student 18 6777 Student 19 7389 Student 20 5479 MarchAprilDifferences Pre-test Proposed Post- test Mean678720 Range35296 Ratio Data : 29.85%

8. Pre-test and Proposed Post-test StudentsMarchApril Student 1 7086 Student 2 5589 Student 3 6790 Student 4 4781 Student 5 5280 Student 6 6591 Student 7 6691 Student 8 5289 Student 9 5790 Student 10 6091 Student 11 5988 Student 12 6188 Student 13 7089 Student 14 7393 Student 15 6989 Student 16 7391 Student 17 7089 Student 18 7189 Student 19 7292 Student 20 8098 MarchApril Difference Pre-testProposed Post-test Mean6489 25 Range3318 15 Ratio Data: 39.06%

9. African-American Students Correlation Strongly Disagree/Disagree Studentxy 3166 5167 8272 10276 15278 19273 rxy=0.89 30% Strongly Agree/Agree Studentxy 1475 2445 4378 6454 7449 9345 11455 12475 13473 14378 16380 17480 18467 20454 rxy=0.26 70%

10. rxy= -0.22 rxy= -0.39 Russian Students Correlation 45% 55% Strongly Agree/Agree Studentxy 2455 4447 6365 8452 9357 11359 14473 16373 18372 19472 20380 Strongly Disagree/Disagree Studentxy 1170 3167 5152 7166 10260 12261 13170 15169 17270

11. Sample: Student Surveys  Demographics Question :Were you born in this country? (1) (2) Yes No  Attitudes Question: I love to eat food from my native country. (1) (2) (3) (4) Strongly Disagree Disagree Agree Strongly Agree  Frequencies How many times have you visited your county? (1) (2) (3) (4) 0 times 1-4 times 5-9 times 10 or more times

12. References  O’Connor-Petruso, S. (2012). Descriptive Statistics Threats to Validity [PowerPoint slides]. Retrieved from http://bbhosted.cuny.edu/webapps/portal/ http://bbhosted.cuny.edu/webapps/portal/