Answered step by step
Verified Expert Solution
Link Copied!

Question

1 Approved Answer

1. A study by ]ylha and Isometsa [2006) found that the correlation between extraversion and depression was r = -.47 in a random sample from

image text in transcribedimage text in transcribedimage text in transcribed
1. A study by ]ylha and Isometsa [2006) found that the correlation between extraversion and depression was r = -.47 in a random sample from Finland. What can we conclude from this nding? a. Extraversion causes lower depression. b. People who score high on extraversion tend to score low on depression. c. There is no relationship between extraversion and depression. d. People who score high on extraversion tend to score high on depression. 2. In Question #1 above, what proportion of the variability in depression can be explained by its relationship with extraversion? Is it a small, medium, or large effect? (Hint: Think about what you are being asked to compute. What is the "proportion of variability explained\" the denition of?) 3. In each of the following pairs of correlations, identify the one that indicates a stronger relationship. a r=.56 r =.18 b r= -.25 r = -.60 C. 4. The age and reading ability (on a scale of 1-10) of five children are listed in the table below. Calculate the correlation coefficient, coefficient of determination, and interpret the latter value in terms of proportion of variability explained and effect size. Name Age Reading Score Addy 7 Carson 6 Peyton 10 Colty Leah5. A professor noted the number of absences and the final percentage grade for four students. Calculate the correlation coefficient, coefficient of determination, and interpret the latter value in terms of proportion of variability explained and effect size. Number of absences Final percentage grade 75 W O 90 10 55 5 80

Step by Step Solution

There are 3 Steps involved in it

Step: 1

blur-text-image

Get Instant Access to Expert-Tailored Solutions

See step-by-step solutions with expert insights and AI powered tools for academic success

Step: 2

blur-text-image

Step: 3

blur-text-image

Ace Your Homework with AI

Get the answers you need in no time with our AI-driven, step-by-step assistance

Get Started

Recommended Textbook for

Abstract Algebra

Authors: John A Beachy, William D Blair

3rd Edition

1478615915, 9781478615910

More Books

Students also viewed these Mathematics questions