17 18 210 23 23 26 21 21 24 24 27 Question 26 Unsaved 29 30 mental ability. So, the researcher has groups of participants complete a few puzzles. She times the group and grades their performance. Then, waits an hour and has them complete similar puzzles and again records their time and performance. She experiments by playing different types of music during the second testing to see if their improvement is more significant with certain types of music. How would you describe the type of music she plays? a) Independent Variable (Treatment Variable) b) Confounding Variable c) Dependent Variable Mariable of Interact 00000