Changing the Instrument (Or Measurements) Used Between the Pre-Test and Post-Test

Q1: The reactive effect of experimental procedures is

Q2: Contamination of data occurs when the program

Q3: Measures of program effectiveness are needed to

Q4: The determination of whether any other factors

Q5: Which of the following measures the impact

Q7: Which of the following is concerned with

Q8: If any factors other than random assignment

Q9: Which of the following clearly indicates that

Q10: The purpose of random assignment is to

Q11: Which of the following is used to