For each of the following events, determine whether or not it represents an example
1. The cessation of thumb sucking by an infant.
2. The acquisition of language in children.
3. A computer program generates random opening moves for its first 100 chess games and
tabulates the outcomes of those games. Starting with the 101st game, the computer uses those
tabulations to influence its choice of opening moves.
4. A worm is placed in a T-maze. The left arm of the maze is brightly lit and dry; the right arm
is dim and moist. On the first 10 trials, the worm turns right 7 times. On the next 10 trials, the
worm turns right all 10 times.
5. Ethel stays up late the night before the October GRE administration and consumes large
quantities of licit and illicit pharmacological agents. Her combined (verbal plus quantitative)
score is 410. The night before the December GRE administration, she goes to bed early after a
wholesome dinner and a glass of milk. Her score increases to 1210. Is the change in scores due to
6. A previously psychotic patient is given Dr. K’s patented phrenological surgery and no longer
exhibits any psychotic behaviors.
7. A lanky zinnia plant is pinched back and begins to grow denser foliage and flowers.
8. MYCIN is a computer program that does a rather good job of diagnosing human infections by
consulting a large database of rules it has been given. If we add another rule to the database, has
MYCIN learned something?