Griggs and Cox's memory retrieval explanation of conditional reasoning was supported by their finding that American subjects performed better on a concrete task if it required
a. evaluating a postal rule.
b. evaluating a drinking-age rule.
c. Both evaluating a postal and a drinking-age rule
d. Neither evaluating a postal nor a drinking-age rule
Question 2
The findings of Wason and Johnson-Laird suggest that people usually
a. correctly test abstract logical statements by searching for confirming evidence.
b. correctly test abstract logical statements by searching for disconfirming evidence.
c. incorrectly test abstract logical statements by searching for confirming evidence.
d. incorrectly test abstract logical statements by searching for disconfirming evidence.