Hallman, Price and Katsarou (2002) investigated the influence of background noic

Question

Hallman, Price and Katsarou (2002) investigated the influence of background noice on classroom performance for children aged 10 to 12. Students in one classroom worked on an arithmetic task with calm music in the backgroun, the second classroom heared agressive music and the last classroom had no music at all. The researched measured the number of problems answered correctly for each student to determine if music had an effect on performance. n=12. What statistical test is the best to use to evaluate the scores/data?

Explanation / Answer

Perform Chi-sqaure test of independence, because, here it is asked to check if the two variables-music and performance measured on the same population (children aged 10-12) are independnet or not.

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