SOCI 301 Unit 7 Exam Questions and
Answers Graded A+
effect size - Correct answer-effect size is a measure of the difference between
populations
distinction between statistical significance and practical significance - Correct
answer-a statistical test can sometimes return a significant result, but the actual
effect size is insignificant and of no practical importance.
How to calculate effect size - Correct answer-Cohen's d: Effect size= (Population
1M - Population 2M)/Population SD
To calculate the standardized effect size, we divide the effect (that is, the difference
between the population means) by the population standard deviation. If we don't
have the SD of the population, we can use the SD of one or the other of the groups
in the study as an estimate.
Cohen's effect size conventions - Correct answer-Small d = ±.20
Medium d = ±.50
Large d = ±.80
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Answers Graded A+
effect size - Correct answer-effect size is a measure of the difference between
populations
distinction between statistical significance and practical significance - Correct
answer-a statistical test can sometimes return a significant result, but the actual
effect size is insignificant and of no practical importance.
How to calculate effect size - Correct answer-Cohen's d: Effect size= (Population
1M - Population 2M)/Population SD
To calculate the standardized effect size, we divide the effect (that is, the difference
between the population means) by the population standard deviation. If we don't
have the SD of the population, we can use the SD of one or the other of the groups
in the study as an estimate.
Cohen's effect size conventions - Correct answer-Small d = ±.20
Medium d = ±.50
Large d = ±.80
©COPYRIGHT 2025, ALL RIGHTS RESERVED 1
