In seeking to debunk the “empt
In seeking to debunk the “empty nest” myth, researchershypothesized that marital satisfaction among women would increaseafter their children moved out. To test this hypothesis, theycollected data on marital satisfaction from 61 women at two timepoints: 1 year before children moved out and 1 year after childrenmoved out. They observed that the average marital satisfactionamong women at time 1 was 6.2 and the average marital satisfactionamong women at time 2 was 6.8. The sum of squares for thedifference scores (SSD) was 210. Use the critical-valueapproach for a dependent samples t-test (where α = .01) todetermine if there is a significant increase in maritalsatisfaction among women after children move out.
8. Identify thealternative hypothesis
9. List yourdegrees of freedom
10. List your estimated standarderror
11. List your t test statistic(where: Time 2 – Time 1)
12. List your critical tvalue(s)
13. Is the increase in maritalsatisfaction among women following children moving outstatistically significant? (Yes/No)
14. Calculate Cohen’s d forthe difference in marital satisfaction
Answer:
Here we have
The standard deviation is
————————
10:The estimated standard error is
11. List your t test statistic(where: Time 2 – Time 1): 0.60
12. List your critical tvalue(s): 2.39
13. Is the increase in maritalsatisfaction among women following children moving outstatistically significant? Yes
14. Calculate Cohen’s d forthe difference in marital satisfaction:
It is medium effect.
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