Sometimes frequently means seldom: Context effects in the interpretation of quantitative expressions

Subjects supplied numerical definitions for five quantitative expressions embedded in two high-frequency contexts, one moderate-frequency context, two low-frequency contexts, and with no context specified. Mean definitions differed significantly across contexts and expressions with a Context-Expression interaction (p < .01). The variance in definition of an expression embedded in a context generally increased with the discrepancy between its no-context definition and the context event's estimated frequency (p < .05). Variance in the definitions of the sampled expressions gathered over diverse contexts increased with the expression's no-context definition (p < .05). Thus, the mean and variance of an expression's numerical definitions depended upon both the expression and its context.