Which of the following doesn't belong in Kelley's (1967) model of attribution?

Even when Lepper, Ross, and Lau explained to high school students that prior viewing of a confusing film caused their poor performance on a problem-solving test, the students continued to see themselves as incompetent. This illustrates:

a. the belief perseverance phenomenon. b. the framing effect. c. functional fixedness. d. the availability heuristic. e. the representativeness heuristic.

Compared to younger couples, older couples in long-term marriages:

have more conflict. are less emotionally intense. have more frequent sex. are closer.