Which of the following terms refers to the fact that animals and human beings may be evolutionarily predisposed to fear certain stimuli that threaten their survival?

Sometimes, researchers actually try to reduce _________ validity by obscuring the true purpose of a measure

a. construct b. convergent c. discriminant d. face

The major independent variable of interest in studies of visual search is:

a) the number of items in the visual display. b) RT to make a present-absent judgment. c) accuracy in making the present-absent judgment. d) the size of the visual display.