Question

A counselor working with people who are developmentally disabled has read research relating accurate responses to the type of reinforcement they receive. For three weeks, the counselor provides verbal praise every time a client completes a simple task correctly and then totals the number of simple problem-solving tasks that are completed successfully. For the next three weeks, the counselor provides a small piece of candy for each successfully completed task. The data for the group are as follows:
After 3 weeks of verbal praise – 17 tasks completed successfully in one hour.
After 3 weeks of tangible rewards – 27 tasks completed successfully in one hour.
Verbal Praise
Tangible Rewards
Total
Observed
17
27
44
Calculate the chi-square, determine statistical significance, and answer the questions in the assignment instructions.

Answer 1