PSYCH 1X03 Chapter Notes - Chapter 1.2: Experiment, Cell Culture, Exercise Intensity
11 Sep 2017
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**anecdotal evidence is insufficient to draw scientific conclusions: single experience might not be representative, personal experience might not represent others, cannot be sure that result is due to energy drinks alone. Experiment: scientific tool used to measure the effect of one variable on another: testing a hypothesis with an experiment allows for causal conclusions. Measuring cell growth by adding various amounts of an enzyme to a cell culture. Independent variable: amount of enzyme present: dependent variable: amount of cell growth, ex. Independent variable: exercise intensity: dependent variable: chosen measure of fitness, such as lean muscle mass. In both examples, the experimenter is directly controlling the level of the independent variable and measuring this effect on the chosen measure of the dependent variable. Case study cont: eric has not conducted a true experiment at all -- his single experience with mega.
