What type of hypothesis posits a difference between groups w

What type of hypothesis posits a difference between groups where the difference is not specified?

Directional hypothesis

Nondirectonal hypothesis

Research hypothesis

Null hypothesis

Solution

The Directional and Non directional hypotheses predicts that there will be a difference between the two groups only difference between the two is that in Directional hypothesis it is specified that how the groups will differ while non directional fails to specify how the groups will differ.(Marczyk, DeMatteo and Festinger, 2005).

On the other hand, Null hypothesis always predicts that there will be no differences between the groups being studied. (Kazdin, 1992). While Research Hypothesis helps predicting the tentative outcomes or expected results of the research study being undertaken.