Reference no: EM132586241
Practice Exercise: Chi-Square Test of Independence
When is it appropriate to use the chi-square test of independence instead of the one sample chi-square? (Hint: You can get information on this test through the SPSS Help menu by selecting Topics and searching for chi-square in the index)
a. When there are two categorical variables
b. When the expected frequencies are greater than 5 in atleast 20% of cells
c. When the observations are indipedent.
1. Write an appropriate null hypothesis for this analysis.
2. What is the value of the chi-square statistic?
3. What are the reported degrees of freedom?
4. What is the reported level of significance?
5. Based on the results of the chi- square test of independence, is there a statistically significant relationship between gender and attitude toward cooperative learning?
5. What percent of males favor compulsory cooperative learning in schools?
6. What percent of females favor compulsory cooperative learning in schools?
8. Based on the percent within gender, are males more likely, less likely, or equally
9. Report and interpret your findings as they might appear in an article.
Practice Exercise: Chi-Square Test of Independence
Use the Crosstabs option in the Descriptives menu to answer the questions based on the following scenario. (Be sure to select Chi-square from the Statistics submenu and Observed, Expected, Row, and Column in the Cells submenu. Assume a level of significance of .05)
You are interested in determining the existence of a significant interaction between three Preferred Instructional Strategies and Gender.
1. Write an appropriate null hypothesis for this analysis.
2. What is the value of the chi-square statistic?
3. What are the reported degrees of freedom?
4. What is the reported level of significance?
5. Based on the results of the chi- square test of independence, was there a statistically significant relationship between gender and the instructional strategy preference?
6. Based on the percentages within gender does there appear to be a clear instructional preference among males? If so, what strategy is preferred?
6. Based on the percentages within gender does there appear to be a clear instructional preference among females? If so, what strategy is preferred?
7. Were the preferred strategies identified by the males and females the same?
8. Report and interpret your findings as they might appear in an article.