Measures of Central Tendency
and Their Uses Measure of Appropriate central measure tendency Calculation When applied of dispersion Mode Most frequently With categorical Not required occurring value data, eg, sex, in the data blood groups, disease stages Median Order data from Continuous Range (minimum- low to high or numerical data maximum) and/or vice versa, that is Interquartile pick the value non-normally range (25th- that divides distributed 75th the data in 50% ("skewed"), eg, percentile) above and 50% height, weight, below lab values Mean Add all data Numerical Standard together and continuous deviation divide the normally total by the distributed number of data data ("bell- points shaped"), eg, height, weight, lab values
The cafeteria looks at meal participation to plan the ordering for the meals--How might they use alternative measures of central tendency
to help them with their ordering and meal planning?
Unlike Na and ESP, EC was fairly uniform with depth with respect to measures of central tendency
Determining which measure or measures of central tendency
to include initially depends on the level of measurement of the variable being described.
In discussing the item map, the difficulty order of six items and students' answering patterns are analyzed using descriptive statistics and measures of central tendency
of test scores.
In sharp contrast, the present study focused not on measures of central tendency
, but on individual errors.
In an attempt to go beyond measures of central tendency
, Markides includes a detailed and very intriguing discussion of four case studies (Gulf & Western, American Can, Continental Can and Goodyear Tire) and the events that took place after each firm announced its refocusing plans.
These are: undergraduate statistics `cookbooks' (basic statistics, measures of central tendency
, bivariate and multi-variate analysis); postgraduate statistics `cookbooks' (all of the above plus a chapter on factor analysis) and finally, very tedious methodological tracts usually dealing with technical issues.
Table 2 contains a comparison of measures of central tendency
for occupation groups.
The mean, the median, or the mode may be used to describe the "central tendency" of data, but average should not be used as a synonym for any of these measures of central tendency
This procedure produces six indexes: Two "standard" units (1982 characteristics and 1987 characteristics), each using three measures of central tendency