A study reviewed in our course found low self-esteem adolescents who engaged in criminal behaviors in the presence of other low- self-esteem peers saw a(n) _______________ in their self-esteem. Increase No change Decrease
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Childhood participation in sports, cultural groups, and youth groups appears to be related to improved self-esteem for adolescents (McGee, Williams, Howden-Chapman, Martin, & Kawachi, 2006). In a representative study, a sample of n= 100 adolescents with a history of group participation is given a standardized self-esteem questionnaire. For the general population of adolescents, scores on this questionnaire form a normal distribution with a mean of 𝜇= 50 and a standard deviation of 𝜎= 15. The sample of group participation adolescents had an average of M= 53.8. a.Does this sample provide enough evidence to conclude that self-esteem scores for these adolescents are significantly different from those of general population? Use a two-tailed test with 𝛼= .05. Write your results in APA style. b.Compute Cohen’s dto measure the size of the difference.
Supreeta N.
Childhood participation in sports, cultural groups, and youth groups appears to be related to improved self-esteem for adolescents (McGee, Williams, Howden-Chapman, Martin, & Kawachi, 2006). In a representative study, a sample of n = 100 adolescents with a history of group participation is given a standardized self-esteem questionnaire. For the general population of adolescents, scores on this questionnaire form a normal distribution with a mean of μ = 40 and standard deviation of σ = 12. The sample of group-participation adolescents had an average of M = 43.84. Does this sample provide enough evidence to conclude that self-esteem scores for these adolescents are significantly different from those of the general population? Use a two-tailed test with α = .01. Compute Cohen’s d to measure the size of the difference. Write a sentence describing the outcome of the hypothesis test and the measure of effect size as it would appear in a research report.
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