2.
"In one experiment, groups of pro-Communist and anti-Communist college
students were exposed weekly for a period of five weeks to both a pro-Soviet
Union and anti-Soviet Union message. Their progress in learning the
anti-Soviet Union passage is charted in the figure below. Clearly,
the anti-Communist group, for whom the message was compatible, learnt its
content more rapidly. In the second stage of the experiment, stretching
over another five weeks, the two groups of students were tested weekly
for their recall of the passage. Here again, the group for whom the
message was compatible retained more of the message over time. Although
not charted here, similar results were obtained for the pro-Soviet Union
message. As we expected, the compatible message was better learnt,
and in line with the idea of selective retention, the compatible message
also was better retained (
)".