CHANGING THE STRUCTURE OF INTUITIVE ESTIMATES OF TIME-SAVINGS

SVENSON, O. Changing the structure of intuitive estimates of time-savings. Scand. J. Psychol. , 1971, 12, 131–134.–Estimates of time saved when increasing an original assumed mean speed to a higher one were collected for different distances and combinations of velocities. Following each answer in five learning phases one group of subjects was given information about the correct time-gain. A control group taking part only in the ten test phases of the experiment gave estimates systematically differing from real time-gains following a previously suggested relation. The estimates given by the experimental group were improved to the same degree as the control group's estimates were gradually better approximated by the previously found relation.