For Questions 1 and 2, include all Steps of Hypothesis Testing. For each problem

Question

For Questions 1 and 2, include all Steps of Hypothesis Testing. For each problem, use the p-value from SPSS to determine whether to reject or not reject the null hypothesis and don't forget to indicate your conclusion about whether there is a significant difference. 1. In a study on the effects of reward on learning in children, a researcher randomly assigned 25 children to five reward conditions. Each child was given a puzzle that could be solved only if the moves were learned in order. For Group 1, every correct move was rewarded until the puzzle was solved; for Group 2, 75% of correct moves were rewarded on a random schedule; for Group 3, 50% of correct moves were rewarded on a random schedule; for Group 4, 25% of correct moves were rewarded on a random schedule; and for Group 5, no moves were rewarded. The table below shows the number of trials each child took to learn the correct sequence of moves. Group 16 17 18 14 15 Groups 14 16 17 18 17 Groupl Group2 10 12 10 13 Group4 17 16 15 16 16 10 Using SPSS and an alpha level of.05, determine whether there is an overall effect of reward and if there are specific differences between the groups. Include means and standard deviations in your SPSS output, and don't forget to indicate your conclusion.

Explanation / Answer

Here the value of F is showing big difference between the groups. The p value is less than 0.05 therefore it is significant difference between the group.

Now which group is significant check by post hoc test.

Here we can see astric sign* on mean difference .which showing group 3 , group 4 and group 5 are significant different from group 1 and group 2.

in this we can concluded from these tables there is an overoverall effect of reward. Group 3, group 4 and group 5 are significant.

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