Question: I need help with this homework problem. In your Cognitive Psychology class, you learn that aging is associated with declines on a wide variety of
I need help with this homework problem.
In your Cognitive Psychology class, you learn that aging is associated with declines on a wide variety of cognitive tests. You decide to run a multiple regression analysis to examine whether age and years of education can predict a person's memory abilities. You measure age (in years), education (in years), and composite memory score on a set of free recall tests for a sample of 20 people and obtain the software output below:
Model Summary
Model R Square
1 _______
ANOVAa
Model Sum of Squares df Mean Square F p-value
1 Regression __________ _____ 2348.8 ____ .045
Residual 9395.22 _____ _________ xxx xxx
Total ????? xxx xxx xxx xxx
Coefficientsa
Model Unstandardized Coefficients B Std. Error Standardized Coefficients Beta t p-value
1 (Constant) 5.6 0.67 xxx .000
age 2.4 0.56 ???? _____ .03
education 1.1 0.79 ???? 1.4 .09
1. Fill in the blanks above; you're not required to fill in boxes with "???". Show work below. (14)
2. What composite free recall score would a 45-year old with 16 years of education receive? (3)
3. Explain in words what the calculated value of R2 means. (2)
4. Write the conclusions for this analysis in APA style. (12)
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