p2.docx - Data screening helps identify and remediate potential problems with the data before completing data analysis Errors in a data set or data that

p2.docx - Data screening helps identify and remediate...

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Data screening helps identify and remediate potential problems with the data before completing data analysis. Errors in a data set or data that violates assumptions required for analysis can cause misleading results. Potential problems include; errors in data coding and data entry, inconsistent responses, missing values, extreme outliers, nonnormal distribution shapes, with-in group sample sizes that are too small for analysis, and nonlinear relations between quantitative variables (Warner, 2013). You can identify and remediate errors in data entry by proofreading the SPSS data file, as well as by comparing it to the original data source. It may be necessary to proofread the data line by line and comparing it with the original datasheet (Warner, 2013). Warner (2013) suggests that it is helpful to have a unique code number associated with each case so that it can be matched up with
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