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Use the following information to ensure successful completion of the assignment:
Researchers wanted to explore self-esteem in adolescent boys and adolescent girls. They used a 5-point Likert-type self-esteem inventory; 1 =strongly disagree and 5 = strongly agree. What if their results yielded the following: t=1.71, d=.90.
This assignment uses a grading rubric.
Prepare this assignment according to the APA guidelines found in the APA Style Guide, located in the Student Success Center. An abstract is not required
In an essay of 250-500 words, use the scenario presented in part 1a, above, to thoroughly answer the following questions:
What statistical test did the researchers use to determine if there was a statistically significant difference in levels of self-esteem between the boys and the girls?
What was the purpose of calculating a Cohen’s d? When is a Cohen’s d calculated? Interpret d=.90. What does it mean in this example?
What if the researcher compared the adolescent boys before treatment and again after treating them for depression? What type of t-test would be most appropriate in this case, and why?
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