PSYCH 1X03 Lecture Notes - Research, Inode, Histogram
24 Sep 2014
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Document Summary
Unit 1: introduction to scientific research: summarize and observe trends in data using descriptive statistics, evaluate the effects of an experimental manipulation using inferential statistics, understand how observational studies allow scientists to collect data that, statistics allow us to summarize, interpret, and present the we have collected, descriptive statistics experimental studies cannot address. : the average value of a data set: mean, outliers, median, mode, standard deviation mean, indicating the largest standard deviation. Inferential statistics: use the results from samples to make inferences about overall, underlying populations: control group: the general population, experimental group: energy drink performance population, t test: a statistical test that considers each data point from both groups to calculate the probability of getting the results by chance if there is in fact only one distribution underlying both groups in the experiment, p value: a value expressing the probability calculated by the t test, no significant, significant.
