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

The most likely reason for Gavin's findings is that his groups were too similar. This means that both groups received similar instruction, which led to similar performance on reading error rates and comprehension scores. It is possible that with a larger sample, differences between the two types of instruction could have emerged. However, given the information provided, D is the best choice.

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