PSYC 203 Chapter Notes - Chapter 5: Robert S. Woodworth, Dependent And Independent Variables, Confounding
31 May 2015
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Document Summary
Robert sessions woodworth published experimental psychology in 1938. Columbia bible had a big impact on the future teaching of experimental psychology. Woodworth de ned experiment as it is known today. Before, it was loosely de ned as any kind of empirical research. One or more factors are varied- independent variables . Try to keep all other factors constant- extraneous variables measure the impact on some behaviour of interest. - dependent variables . Together x is necessary & suf cient for producing y. Results could be due to independent variable or to confounding variable. Ceiling effects (task is too easy and all the scores are very high) Floor effects (task is too dif cult and all the scores are very low) Selected pre-existing attributes of participants e. g. , sex, age, personality characteristic. Study examining the in uence of age, education, and peer pressure on helping behaviour.
