An effect size of 0.53 was calculated on data after performing a hypothesis test with a single-sample t statistic in which the null hypothesis was rejected.What can be concluded about the results based on this information?
A) The research hypothesis is supported, but the effect size is small.
B) The sample data are significantly different from what was expected based on the population, with the sample mean 0.53 standard deviations greater than the population mean.
C) The population mean is 0.53 standard error units greater than the sample mean, and the results are significant.
D) The effect size is medium, which means there is a medium risk that a Type I error has occurred.

Question

Quizplus · Accepted Answer

The effect size of 0.53 indicates the magnitude of the difference between the sample data and the population parameters, suggesting the sample mean is 0.53 standard deviations away from the population mean, not the risk of error or the direction of the difference.

An Effect Size of 0