![]() TERMS IN THIS SET (28) The Wechsler Adult Intelligence Scale (WAIS) is an IQ test. It is affected by extremely high or low values in a data set +13 more terms MR = (lowest value + highest value) / 2ģ. It is defined as the sum of the lowest and highest values in the data set divided by 2. Can be used when the data are nominal or categorical, such as religious preference, gender or political affiliation Midrange 1. ![]() Used when the most typical case is desiredģ. The value that occurs most often in a data setĢ. It is affected less than the mean by extremely high or extremely low values Mode 1. Used when it is necessary to find out whether the data values fall into the upper half or the lower half of the distributionĤ. Used to find the center or middle value of a data setģ. Affected by extremely high or low values, called outliers, and may not be the appropriate average to use in these situations Median 1. Cannot be computed for a data set in a frequency distribution that has an open-ended classĦ. It is unique and not necessarily one of the data valuesĥ. Varies less than the median or the mode when samples are taken from the same population and all 3 measures are computed for these samplesĤ. It is the sum of the values, divided by the total number of valuesĢ.
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