PSYC 2020 Lecture Notes - Lecture 4: Central Tendency, Percentile, Descriptive Statistics

• School: York University
• Department: Psychology
• Course: PSYC 2020
• Professor: heatherjenkins

Document Summary

A concept, few diff ways to define what it really is. Statistical measure to determine a single score that defines the centre of the distribution: the most typical or most representative of the entire group, trying to find one number that describes our data. Serves as a descriptive statistic because it allows researchers to describe or present a set of data in a very simplified, concise form. Allows for comparison of data by simply comparing the average score for one set vs. the average score for another set. Three different ways to measure central tendency that demonstrate the difficulty of defining central tendency. Try to locate the centre of the distribution. No single, standard procedure for determining central tendency: problem is that no single measure produced a central. Representative value in every situation: there can be problems defining the centre of a distributing. To deal with these problems > statistics have developed three different methods for measuring central tendency.