The authors present the items for the outcome variable, Sense of Control, in the Appendix (p. 117). Sense of Control is the average of eight items in which the respondent claims or denies control over good and bad outcomes. The average ranges from −2 to 2. The mean (standard deviation) of the outcome are 0.52 (0.51) for Asians and 0.68 (0.50) for non-Asians.

(a) Interpret the R-squared value.

(b) The article indicates that “marital status is coded (1) for respondents who are currently married or living together as married, and (0) for the divorced separated, widowed, or never married” (p. 107). Write the null and alternative hypotheses being tested for this Married variable.

(c) Interpret the unstandardized coeffi cient estimate for the Married variable.

(d) Calculate a semistandardized estimate for the Married variable, using the standard deviation of the outcome variable. (Because the authors only provided the standard deviation within the Asian and non-Asian subgroups, you can choose one of the group’s standard deviations or calculate the semistandardized estimate once using each standard deviation.)

(e) Calculate and interpret a 95 percent confi dence interval for the Married Variable using the unstandardized coeffi cients.