The R script "Math4Speed_preprocessing.R" runs on the file "Math4Speed_Data_template.csv" (see component collaboration) and gives the final variables:
- *sum_speeded* = Sum score all arithmetic operations
- *add_sum_score* = Sum score all addition items
- *sub_sum_score* = Sum score all subtraction items
- *mult_sum_score* = Sum score all multiplication items
- *div_sum_score* = Sum score all division items
- *easy_add_sum_score* = Sum score easy addition items
- *diff_add_sum_score* = Sum score difficult addition items
- *easy_sub_sum_score* = Sum score easy subtraction items
- *diff_sub_sum_score* = Sum score difficult subtraction items
- *easy_mult_sum_score* = Sum score easy multiplication items
- *diff_mult_sum_score* = Sum score difficult multiplication items
- *easy_div_sum_score* = Sum score easy division items
- *diff_div_sum_score* = Sum score difficult division items
- *sum_err* = Sum score errors in all arithmetic operations
- *add_err* = Sum score errors in addition items
- *sub_err* = Sum score errors in subtraction items
- *mult_err* = Sum score errors in multiplication items
- *div_err* = Sum score errors in division items
Exports "Math4Speed_dat_all.txt"