The fact that we see afterimages is supported by the opponent-process theory of color vision

In the 1940s and 1950s, psychodynamic theory dominated the practice of psychotherapy

Indicate whether the statement is true or false

You are playing a guessing game with a child and you want the child to guess "cat.". You give clues that the animal has four legs, fur, and whiskers, but the child guesses wrong each time. Then you give the hint that the animal purrs and the child correctly guesses "cat.". In terms of concept formation, you supplied the child with a(n):

a. leading clue c. exemplar b. essential characteristic d. prototype