A cancer specialist from the Los Angeles County General Hospital (LACGH) rated patient optimism in 20 to 40 year old patients with incurable cancer in 1970. In 1990, the researcher examined hospital records to gather the variables below. Use Multiple Regression Analysis to answer the questions below. Include all SPSS output at the end of your document in an appendix section.

a. Do the IVs correlate significantly and/or practically with the DV?

b. Is multicollinearity a concern among the IVs?

c. Interpret the R, R2, and Adjusted R2 for all IVs entered simultaneously. Do they change when using a Stepwise approach? Explain.

d. What variables provide a significant unique contribution to the model when using a standard multiple regression? Interpret their significance, b and Beta weights, squared semi partial correlations, and structure coefficients. Are these findings supported when using a Stepwise approach?

Answer rating: 100% (QA)

Dataset MultipleRegressionsav N 244 Variables SES continuous or ordinal range 17 Age in 1970 ordinal range 2040 Optimism in 1970 continuous range 1100 exhibited 4088 Longevity years lived after the 19... View the full answer