A comparison of the 4^th grade students who were taught methods to increase their classroom participation are compared to a group of students who did not receive the classroom participation training on a reading subscale of an academic achievement test using an eta- squared (²) effect size. The SS_Treatment = 1110.050 and the SS_Error = 664.900. Use the illustration in Chapter 3 to calculate the (²) effect size and choose the correct answer below.

Answer

.625

What is the strength of the eta- squared (²) effect size in the example above according to Cohen's convention.

Group of answer choices

Small

Medium

Large

Do the results of the power analysis suggest that the researcher should continue on with the study?

Group of answer choices

True

False