PSYC 210 Chapter Notes - Chapter 2: Random Number Table, Exclusive Or, Dependent And Independent Variables

• School: Simon Fraser University
• Department: Psychology
• Course: PSYC 210
• Professor: Russell Day

Document Summary

In the first case we assigned the ranks 1,2,3 whereas in the 2nd case the scores represented the number of changes rather than ranks: no information is given about the differences between points on the scales. Independent variables = variables controlled by the experimenter: dependent variables = variables being measured; the data or score. Ivs can be either qualitative or quantitative: dvs are generally quantitative. Notation: notational system = used for expressing mathematical operations, no specific notational system has been adopted. Frist we would sum the values of x and then square the result as opposed to x2 in which we would square the xs before we sum: thus, x2 in not equal to ( x)2. The notation of cx means to multiply every value of x be the constant c and then sum the results. A constant = is a number that does not change in value in a given situation.