A developmental psychologist working in the area of suggestion asked a sample of children to solve as many problems as they could in 15 minutes. Half of the children are told that this is a...

A developmental psychologist working in the area of suggestion asked a sample of children to solve as many problems as they could in 15 minutes.  Half of the children are told that this is a problem-solving task and the other half are told that this is just a time-filling task.  The psychologist is interested in the impact of the suggestion on problem solving.  What can be concluded with an α of 0.01?  Below is the data for the number of problems solved.

A) Condition 1 =          Condition 2=

B) critical value=           test statistic =                   Reject or Fail to Reject

C)Compute the corresponding effect size(s) and indicate magnitude(s)

 d=           /  magnitude=

r
²
=          / magnitude=