Age: age in years
Gen: gender (0 = female / 1 = male / 2 = not specified / 3 = non-binary)
Edu: educational level (1 = GCSE or Equivalent and Vocational / 2 = A level / 3 = Bachelor’s degree / 4 = Master’s degree / 5 = Doctoral)
NT1-4: responses to IRI-F scale questions
RCNT1-2: responses to reverse-coded IRI-F scale questions
ART001-200: responses to the ART-G author list
CO1-CO7: responses to the "critical openness" subscale of the CTDS
RS1-RS4: responses to the "reflective scepticism" subscale of the CTDS
Abs1-6: responses to the "absolutism" subscale of the JCI
Mul1-6:responses to the "multiplism" subscale of the JCI
Eva1-6:responses to the "evaluativism" subscale of the JCI

Scales used:
IRI-F:
Davis, M. H. (1983). Measuring individual differences in empathy: Evidence for a multidimensional approach. Journal of Personality and Social Psychology, 44(1), 113–126. https://doi.org/10.1037/0022-3514.44.1.113

ART-G:
Mar, R. A., & Rain, M. (2015). Narrative fiction and expository nonfiction differentially predict verbal ability. Scientific Studies of Reading, 19(6), 1–15. https://doi.org/10.1080/10888438.2015.1069296

CTDS:
Sosu, E. M. (2013). The development and psychometric validation of a Critical Thinking Disposition Scale. Thinking Skills and Creativity, 9, 107–119. https://doi.org/10.1016/j.tsc.2012.09.002

JCI: 
McGinnis, D. (2016). Epistemological orientations and evidence evaluation in undergraduates. Thinking Skills and Creativity, 19, 279–289. https://doi.org/10.1016/j.tsc.2016.01.002