Determine the exact distance between intervals in a category. Descriptive statistics: Measures of Central Tendency (Mean, Median and Mode) Quantitative Data Analysis – Measures of Central Tendency (Description, AO1) When you carry out a psychological experiment, you end up with a great deal of RAW DATA, usually in … Descriptive statistics help us to simplify large amounts of data in a sensible way. The frequency distribution termed bimodal, has two peaks, which represent two equal scores of highest frequency. You can assign this scale to qualitative or categorical variables. Unlike descriptive statistics, this data analysis can extend to a similar larger group and can be visually represented by means of graphic elements. Frequency distributions, histograms, and/or frequency polygons are usually prepared in this process. This is what descriptive statistics (as opposed to inferential statistics) is all about. In other words, descriptive statistics is merely using numbers to describe a known data set. Some of these indicators are: With the help of these concepts, descriptive statistics is in charge of debugging, organizing, and calculating statistics and data representations to offer the researcher and the scientific community a complete map of what happened in their study. The simplest distribution would list every value of a variable and the number of persons who had each value. PLAY. On the other end, Inferential statistics is used to make the generalisation about the population based on the samples. The content in this publication is presented for informative purposes only. Next the sample mean, X) thus obtained is used to derive the test statistic (e.g. A variable encompasses a set of values. That could be how often a … Numerical measures are used to tell about features of a set of data. 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