We considered Mary's interest in doing a study to see if learning of 6th graders on a math lesson is affected by background noise level. There, she was planning to use 2 noise conditions and then analyze her outcomes using a t-test for independent groups. Describe the study Mary might plan where she would use a one-way analysis of variance (ANOVA) for independent groups instead of a t-test to study differences between noise levels. What is her independent variable here? Describe the conditions she could create for this study. What is her dependent variable? Describe a way to measure the DV so that each participant would have one score at the end that would be on a continuous scale of measurement. Support your responses.
Consider Mary's study of whether the learning of 6th graders on a math lesson is affected by background noise level. Describe the pros and cons of Mary using a repeated measures design for this study. What would you probably choose to do? Support your responses.
What is her independent variable here? Describe the conditions she could create for this study.
Answer: here, the independent variable is the background noise level.
We know that one-way ANOVA requires only one independent variable which has at least 3 levels.
Since Mary wants to use a one-way analysis of variance (ANOVA), she must consider at least 3 levels of background noise level. For example, she may ...
The solution gives detailed discussion on applying one-way analysis of variance using a real example and comparing it with repeated measures design. 286 words.