Which of the Following Is a Nondirectional Hypothesis

Multiple Choice

Which of the following is a nondirectional hypothesis?

A) There are no differences in reading comprehension between those taught a summarization strategy and those not taught the strategy.
B) Readers who are taught a summarizing strategy have higher reading comprehension scores than those not taught the strategy.
C) Readers taught a summarizing strategy have lower reading comprehension scores than those who were not taught the strategy.
D) There are differences in reading comprehension between readers who are taught a summarizing strategy and those who are not taught the strategy.