a penny into the experiment cup (A) and told the subject to guess which was the heavier cup. If the subject guessed correctly, we would continue to give them the same two cups, in different hands and order, until they had guessed correctly five times. If the subject guessed incorrectly, another penny was added until they could guess right five times in a row. The purpose of the first weight was to get the subject and experimenter accustomed to the nature of the experiment. After the first trial of ten starting pennies, fifteen pennies were used as a starter. After that sixty pennies were used. Results The mean amount of pennies needed to produce a jnd at the fifteen and sixty penny levels is found on Table 1. The standard deviations are also reported on Table 1. We used the means to compute a t-obtained value by using a correlated t-test to determine if there was a significant difference, t (26) = 6.92, p* .05. DiscussionOur data supports our hypothesis. More pennies are needed to produce a jnd during the sixty penny trial than at the fifteen penny trial.ReferencesMeyers, D.G. (1999). Exploring Psychology. Michigan: Worth Publishers.http://www.medfak.uu.se/fysiologi/Lectures/WebFech.htmlhttp://www.ukdb.web.aol.com/hutchinson/encyclopedia/51/M0020351.htmTable 1 Fifteen pennies Sixty pennies3.634.672.112.79...
