Asked by Bernadine Franklin on Jul 23, 2024
Verified
To examine the difference among the average scores of three unrelated groups,which of the following statistical techniques should be selected?
A) regression
B) dependent-samples t-test
C) independent-samples t-test
D) analysis of variance
Average Scores
The mean value calculated by adding all the scores together and dividing by the number of scores.
Dependent-Samples T-Test
A statistical procedure used to compare the means of two related groups, indicating whether there's a significant difference under the assumption of normally distributed differences.
- Ascertain when it is suitable to utilize a t-test for independent means instead of different statistical methodologies.
Verified Answer
ZH
Zicheng HuangJul 26, 2024
Final Answer :
D
Explanation :
The appropriate statistical technique to examine the difference among the average scores of three unrelated groups is an analysis of variance (ANOVA). ANOVA tests for significant differences between means of more than two groups. The independent-samples t-test is used when comparing the means of two independent groups, while the dependent-samples t-test is used when comparing the means of two related groups. Regression is used to examine the relationship between an independent variable and a dependent variable. Therefore, option D is the best choice for this scenario.
Learning Objectives
- Ascertain when it is suitable to utilize a t-test for independent means instead of different statistical methodologies.