Web Reference: This video walks through how to use nested IF statements in Google Sheets to create a categorical variable from subscale means, using the Adult Attachment Scale (Collins & Read, 1990) as an... Sometimes you may want to analyze your data based on categories or a grouping variable. One way that you could do this is to split the data file into different data files and conduct the same analyses on the two (or more) data sets. This article describes how to perform calculations on subgroups of data using R. A common use case would be if one needed to standardize a rating question based on the respondents' country due to cultural differences in how ratings are interpreted.
YouTube Excerpt: Part of a series on preparing Google Forms survey
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