KINE 2049 Study Guide - Sociological Inquiry, Exercise Intensity, Design Of Experiments

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In the experiment in the book for the effect of bicycling on weight loss, the experiment lacks a second level. Dependant variable: body weight, independent variable: exercise program = , one-group pre-test-post-test design where a single subject is given a pre-test, treatment, then a post-test. Problem with this experiment are that there is not a second level of the independent variable. For a better assessment the program needs a second level which could be: a control group that does not cycle, or a group that rides 15 miles a day rather than 10 miles a day. Basically, the original design lacks a condition against which you can compare the results of the bicycling program. Must also identify the control variables such as diet, etc. because otherwise the results may not be because of bicycling alone. Better; it is a 2 level design, subjects can be randomly assigned to a group and differences can be because of the bicycling program.

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