APA 2180 Lecture Notes - Lecture 15: Confidence Interval, Standard Deviation, Central Tendency
20 Mar 2019
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Document Summary
Triple blind, is when the researcher, client and analyst doesn"t know what they are measuring. Each gender and hair colour is given a whole number cannot be 1. 5. Can be 75. 2 kg in weight: nominal variable: There is no implied order: ordinal variable. Seen in dates (365 days in each year, so interval is the same) Noir is used to but these categories into an hierarchy. Central tendency tells us where the majority of the data lies. Mode is the value that appears the most in the data set. Range of data is the highest and lowest values of something. Standard deviation is the estimate of variables of scores around that mean. A low standard deviation states that the data points are close to the mean. A higher standard deviation means that there is a higher dispersion, data points are further away from the mean. Skew refers to the symmetry of the curve.
