Range and distribution effects on number line placement

People’s placement of numbers on number lines sometimes shows linear and compressive scaling. We investigated whether people’s was affected by their range distribution, as indicated Parducci’s (Psychological Review, 72, 407–418, 1965) range-frequency theory. Experiment 1 found large effects when the endpoints were 1016. 2 showed compression 14 logarithmically distributed placed a line marked 1–1,000 close to scaling linearly distributed. Thus, we both frequency compression. Where arose, it not pronounced that predicted logarithmic scaling, but analyses results from Experiments indicate this explained participants switching between