CRCJ 3001 Lecture 7: week 7

• School: Carleton University
• Department: Criminology and Criminal Justice
• Course: CRCJ 3001
• Professor: Jack Vandenberg

Document Summary

Sample selected for research study: analyzed the population size and fit it in either to a treated sample or return it to the average population. Divided into 2 overlapping areas: descriptive statistics. Purpose to describe, reports, summarize the data (average, variability, graphs: inferential statistics. Using that sample and apply to the general population (tests the probability. Data reduction; a process of transcribing data from individual data sheets to a summary form. Must be done before the actual research. Must be handled through: how to record the data, how to prepare the data for analysis, which statistics to use. Taking a preliminary look at the data for errors. Invalid points: data points that fall outside the defined range for that variable, missing data, empty cell in the spreadsheet, outliers a. Including a special needs person in the data, so their response can impair the total results: data points that are highly improbably, although not impossible.