Question 1 Data Set 14-2 A college student was interested in the relationship between handedness and academic ability. She classified her sample two ways: left- or right-handed and top or bottom half of the class.

The study described in Data Set 14-2 is one of a. goodness of fit b. independence c. could be either Question 2 Data Set 14-3 Each of the four items represent cell totals for a chi square test of independence. W X Y Z 1 29 1 4 1 12 10 1 18 27 29 30 4 10 10 16 21 39 42 50 9 13 18

In Data Set 14-3, the short-cut method can be used on a. W b. X c. Y d. none of the other alternatives are correct; answer is ________ e. Z

Question 3 Combining categories was the solution used by your text when the frequency in some categories was too _________. a. expected; large b. expected, small c. observed, large d. observed, small

Question 4 To find the number of degrees of freedom, you need to know the number of a. categories b. subjects c. all of the other alternatives are correct d. frequencies

Question 5 In a chi square analysis a. both of the descriptive alternatives are correct b. neither of the descriptive alternatives is correct c. the sum of the observed frequencies is equal to the sum of the expected frequencies d. events in one category must be influenced by events in at least one other category

Question 6 Data Set 14-2 A college student was interested in the relationship between handedness and academic ability. She classified her sample two ways: left- or right-handed and top or bottom half of the class.

Which conclusion is correct if the null hypothesis is rejected for Data Set 14-2? a. the data are most likely invalid because there were probably more right- than left-handed students b. none of the other alternatives are correct c. handedness and academic ability are related to each other d. handedness and academic ability are not related to each other

Question 7 The null hypothesis for a test of independence is that the two variables are a. either independent or related, depending on the size of the 2 value and the df b. related c. independent d. either independent or related, depending on the size of the 2 value Question 8 The result of the Cambridge-Somerville Youth Study described in your text was that a. youth from low socioeconomic status homes were no more likely to have a police record as youth from higher socioeconomic status homes b. youth with counselors and enrichment opportunities were less likely to have a police record than youth without counselors and opportunities c. youth from low socioeconomic status homes were twice as likely to have a police record as youth from higher socioeconomic status homes d. youth with counselors and enrichment opportunities were just as likely to have a police record as youth without counselors and opportunities

1 points Question 9 The chi square tests in your textbook require that the scores be a. both of the descriptive alternatives are correct b. quantitative measures (degrees) c. independent d. neither of the descriptive alternatives is correct

Question 10 The effect size index, , varies depending on the number of a. categories b. both subjects and categories c. subjects