There are five words that are critical to an appreciation of what is "typical" in data sets that students encounter across the middle school years. The first three words--mean, median and mode--are nouns that define measures of typicality in data sets. The next two words--categorical and numerical--are adjectives that describe the types…

At the beginning of an introductory social psychology course, students were asked to rate their professor on a semantic differential scale. The results were compiled and used to generate questions about interpersonal perceptions, stereotypes, data collection, and the characteristics and limitations of social psychological research in general. (AM)