Gavin's study compared reading error rates and reading comprehension scores between two groups of 50 third-grade students that received different reading programs. His t-test data analysis did not indicate any differences between the two types of instruction.
-The most likely reason for his findings is that
A) his measures did not measure reading.
B) his sample is too small.
C) he conducted the wrong analysis.
D) his groups were too similar.

Question

Quizplus · Accepted Answer

If the two groups of students were too similar, any differences between their reading programs would have been difficult to detect. It is important to have diverse groups in order to accurately assess the effects of different interventions.

Gavin's Study Compared Reading Error Rates and Reading Comprehension Scores