Data and descriptive analysis 5.0 / 5 based on 1 rating ? PsychologyResearch methods and techniquesA2/A-levelWJEC Created by: MillieCreated on: 28-05-14 13:01 Data that is numerical and often expresses the 'quantity' of something Quantitative data 1 of 16 One advantage of this type of data is that it is in depth and detailed Qualitative data 2 of 16 A level of measurement where data are in separate catergories Nominal data 3 of 16 A level of measurement where data is ordered in some way Ordinal data 4 of 16 A measurement where there is a true zero point and equal intervals between units, as in most measures of physical quantities Interval data 5 of 16 A level of measurement where units of equal intervals are used such as counting correct answers Ratio data 6 of 16 A calculation of the average number out of a set of data Mean 7 of 16 A descriptive statistic that provides information about a 'typical' number for a data set Measure of central tendency 8 of 16 The middle value of a set of scores when placed in rank order Median 9 of 16 The difference between the highest and lowest score in a set of data Range 10 of 16 The most frequently occurring score in a set of data Mode 11 of 16 A descriptive statistic that gives us information about how spread out a set of scores is Dispersion 12 of 16 Data that is detailed and is written in word. Often expresses the 'quality of something Qualitative data 13 of 16 The middle quarter of a set of data Inter quartile range 14 of 16 A measure of how far all scores are spread out from the mean Standard deviation 15 of 16 One disadvantage of this type of data is that it takes into account extreme values and so may be skewed Mean 16 of 16
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