If we say that a particular data collection method has high ...

[Kthamas]

If we say that a particular data collection method has high reliability, we mean that it:
 
  a. Yields scores that fall on a bell curve
  b. Yields similar results on different occasions
  c. Predicts future success in academic or social settings
  d. Accurately determines whether children have met certain predetermined developmental goals

Question 2

Developmental researchers need to be sure that any data collection method they use is actually assessing what it is supposed to assess. In other words, researchers need to be concerned about what aspect of their data-collection techniques?
 
  a. reliability
  b. practicality
  c. physiological basis
  d. validity

[shewald78]

Answer to Question 1

B

Answer to Question 2

D