An item is intended to measure critical-thinking ability, but students can obtain high scores merely by recognizing familiar vocabulary. The primary concern is that the item may lack:
A researcher obtains permission from the principal, district authority, teacher, students, and parents before conducting a classroom study. This primarily reflects:
A.Statistical control
B.Respect for the research site
C.Hypothesis testing
D.Data triangulation
Correct answer is:
B. Respect for the research site