Creating sum scales in R - Using mutate and across in dplyr

learning objectives
what rowSums does
what arguments rowSums requires
how to use rowSums within mutate
why we need multiple mutate statements

practice:
with the same dataset:
 recode a-e to be 10-15
 reverse code mssi2-mssi6 and dep1:dep3
 create sum scales for sf_a/b/c using different rules (you choose)

practice dataset: quantpsych.net/data/data_satisfaction.csv
R code: quantpsych.net/data/10b-advanced dplyr. R

• #education
• #statistics
• #psychology
• #nhst
• #null_hypothesis_significance_testing
• #philosophy_of_science