Q1. [7pts] A study on adolescents were given counseling at the beginning of the school year to see if it had a positive impact on their tolerance for other adolescents who were ethnically different from them. Assessments were made right before the treatment and then 6 months later. Literally, the data are collect before treatment and after treatment. The outcome variable is scored on an attitude-toward-others test with possible scores ranging from 0 to 50; the higher the score, the more tolerance. Use SPSS to complete the analysis.

1.1) [1pt] What is an appropriate statistics test for the analysis?

1.2) [2pts] State the null hypothesis and alternatives hypothesis.

1.3) [2pts] Show the SPSS output including the mean score of before and after treatment.

1.4) [2pts] Make a conclusion based on the SPSS output whether

i) reject H₀ (statistically significant) or fail to reject H₀ and why?

ii) there is difference in the mean score of before and after the program