In longitudinal research panels, new members tend to increase or ...

[mmm]

In longitudinal research panels, new members tend to increase or over-report the behavior being measured, such as watching television or food purchasing. This is called
 a. unrepresentative sampling c. endogeneity
  b. response bias d. observation error

Question 2

A questionnaire is _____ to the extent that all information collected addresses a research question and helps a decision maker address a current business problem.
 Fill in the blank(s) with correct word

[bdobbins]

Answer to Question 1

B
Research has indicated that new members on a panel are often bias in their initial responses, because they pay more attention to the behaviors being measured.

Answer to Question 2

relevant

[mmm]

TYSM

[scottmt]

Great answer, keep it coming