Need for cognition
A stable individual difference in how much a person enjoys and seeks out effortful thinking.
What it means
Need for cognition is a stable personality trait describing the degree to which an individual is inclined to engage in, and derive enjoyment from, cognitively demanding activity. People high in the trait habitually seek out, reflect on, and elaborate information for its own sake, while those low in it find effortful deliberation aversive and tend to avoid or minimize it. The trait predicts how persuasion works on a person: high-need-for-cognition individuals are influenced primarily by the quality of arguments (the central route of the Elaboration Likelihood Model), whereas low-need individuals lean more heavily on peripheral cues such as source attractiveness, length, or credibility. The mechanism is motivational rather than purely about ability — it is about willingness to expend cognitive effort, which interacts with but is separate from intelligence and with the disposition measured by the cognitive reflection test. Higher need for cognition is associated with more thorough information search, greater resistance to certain biases, and more durable attitudes. It matters because it tells communicators that the same message must be built differently for audiences who relish thinking versus those who economize on it.
Examples
Some people relish a knotty logic puzzle and turn it over for hours; others find it draining and avoid it entirely.
Two people read the same mortgage offer: one works through the rate schedule line by line, the other goes with the lender whose branch staff seemed friendliest.
An election leaflet dense with costings wins over some voters and bores the rest, who judge the candidate instead on how confident he sounded on the doorstep.
First described in Cacioppo & Petty (1982).