Do the independent variables correlate statistically

Question

Optimism and Longevity

A cancer specialist from the Los Angeles County General Hospital (LACGH) rated patient optimism in 20- to 40-year-old male patients with incurable cancer in 1970. In 1990, the researcher examined hospital records to gather the following data:

Socioeconomic status (1-7 rating of occupation; higher ratings indicate higher levels of SES)
Age in 1970

Optimism in 1970 (1-100 rating, higher scores indicate higher levels of optimism)

Longevity (years lived after the 1970 diagnosis)

Using the SPSS data file for Module 7 (located in Topic Materials), calculate a simultaneous multiple regression with SES, age, and optimism as the independent variables and longevity as the dependent variable.

Do the independent variables correlate statistically significantly and practically with the dependent variable?

Is collinearity between the independent variables a concern?

What is the R and adjusted R-square for all independent variables entered simultaneously?

What variable(s) provide a significant unique contribution(s)?

Compose a results section for this statistical analysis.

Answer 1

Complete the assignment for Optimism and Longevity. A cancer expert from the Los Angeles County General Hospital rated patient optimism in 20 to 40 year old male patients having incurable cancer in the year 1970. In year 1990, the researcher analyzed hospital records to collect the given data: Socioeconomic status (1 to 7 rating of occupation; higher ratings point out higher levels of SES) Age in 1970. Optimism in 1970 (1 to 100 rating, higher scores indicate higher levels of optimism) Longevity (that is, years lived after 1970 diagnosis) Compute a simultaneous multiple regression having SES, age and optimism as independent variables and longevity as dependent variable. Do independent variables correlate statistically significantly and practically by means of the dependent variable? Is co-linearity between independent variables a concern? Determine R and adjusted R-square for all independent variables entered concurrently?