Question

# SCENARIO You are a Marriage and Family Therapist. In your practice, you’ve noticed that children seem...

SCENARIO

You are a Marriage and Family Therapist. In your practice, you’ve noticed that children seem to be dramatically influenced by their parent’s marital relationship. You think that changes in marital relationship can be predictive of a child’s overall life satisfaction. In order to test this, you collect data from both children and their parents (n=20). You give the children in your study the Child Psychological Wellbeing Inventory (CPWI) and their parents the Marital Satisfaction Survey (MSS). Using the data below, answer the following questions.

DATA

 CPWI MSS 120 125 109 101 133 132 124 123 114 110 111 115 119 117 129 131 129 127 125 122 127 125 129 125 130 130 115 114 114 115 121 125 127 121 122 124 117 118 131 129
1. What is the research question?
2. Calculate the expected CPWI for MSS scores of 102 and 128.
3. Given that this is a bivariate analysis, what is the correlation coefficient (r)?
4. Report and interpret the 95% confidence interval for the correlation.

What is the research question?

Is there a relationship between children who seem to be dramatically influenced by their parent’s marital relationship?

Calculate the expected CPWI for MSS scores of 102 and 128.

 MSS Predicted 102 106.043 128 127.775

Given that this is a bivariate analysis, what is the correlation coefficient (r)?

 r 0.903

Report and interpret the 95% confidence interval for the correlation.

 confidence interval 95% lower 95% upper 0.6384 1.0333

The 95% confidence interval for the correlation is between 0.6384 and 1.0333. There is a 95% chance that the true slope of the regression line lies within this interval.

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