Which type of effect occurs when there is a change in the wording of questions, a change in interviewers, or a change in other procedures that causes a change in the dependent variable?
a. history effect
b. mortality effect
c. instrumentation effect
d. testing effect
Question 2
When a researcher contacts a decision-maker after the decision-maker has had a chance to read the research report to ask if any part of the report needs further clarification, this is known as a research follow-up.
Indicate whether the statement is true or false
