When researcher needs to perform selective analysis (for example, your research aim is to find out gender-based preferences for Lux soap. After you finish your survey, you may choose to do 2 separate analyses in SPSS: first of all males, then of all female respondents), then this command is used, i.e. selecting cases for analysis.
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If your data isn’t already in a computer-readable SPSS format, you can enter the information directly into the SPSS Data Editor (See Article Importing Files and creating datasheet in SPSS).
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In order to determine the relationship between dependent variable and a set of multiple independent variables, linear regression analysis is conducted.
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