Write a complete paragraph in APA format describing the research question and your results. Question: A social psychologist records the number of outbursts among students at two schools. Assuming the same number of students were observed at each school, what is the sample size at each school, the decision to retain or reject the null hypothesis) and the effect size for this study based on the following statement? The number of outbursts among students at the small school (M=3) was significantly less than the number recorded at the large s
1. Write a complete paragraph in APA format describing the research question and your results.
Question: A social psychologist records the number of outbursts among students at two schools. Assuming the same number of students were observed at each school, what is the sample size at each school, the decision to retain or reject the null hypothesis) and the effect size for this study based on the following statement? The number of outbursts among students at the small school (M=3) was significantly less than the number recorded at the large school (M = 5) f(38) =4.19, p < .05(d = 0.25 ).
Results: sample size = 20 for each school
For a two tailed test and df = 38, at 0.05 significance level, t = 2.023 (from t distribution table)
Here, the critical value is less than t obtained (t2.023 < 4.19)
Hence, we reject the null hypothesis at a 5% significance level
Given that d = 0.25 => effect size is medium (since 0.2<d<0.8 for medium)
Therefore, the study showed a medium effect size
Step by step
Solved in 2 steps
