The csv files hold the data for the 5 studies reported in Skylark and Baron-Cohen (in press), "Initial evidence that non-clinical autistic traits are associated with lower income"

The meaning of the column headings should be clear from that paper, and the paper states the response categories for each question/scale, so this document just gives brief notes:

id: Participant id
AQ: Raw responses to the AQ-short items. For Studies 1-4, larger numbers indicate stronger agreement, so the items to be reverse-scored are: 1,2,4,6,7,9,10,13,14,15,16,17,18,20,23. In Study 5, larger numbers indicate stronger disagreement, so the items to be reverse-scored are: 3,5,8,11,12,19,21,22,24,25,26,27,28.
SATQ: Raw responses to the SATQ items. Higher numbers indicate statement is "more true" of participant. The following items need to be reverse-scored: 1,2,3,4,5,6,7,8,14,15,16,17,19,20,22.
INCOM: Raw scores for short-form Iowa-Netherlands Comparison Orientation Measure. HIgher numbers indicate stronger agreement. Item 3 needs to be reverse-scored. 
SDS17: Raw responses to Social Desirability Scale items. 1 = true; 0 = false. Items 1,5,6,10,14,16 need to be reverse-scored.
gender: 1 = "male", 2 = "female", 3 = "prefer not to say".
ASD: 1 = "no", 2 = "prefer not to say", 3 = "yes". Only participants who answered "no" were included in the primary analyses.
education: level of education. Higher numbers indicate higher levels. 
ethnicity: 1=White, 2=Hispanic, Latino, or Spanish origin; 3=Black or African American; 4=Asian; 5=American Indian or Alaska Native; 6=Middle Eastern or North African; 7=Native Hawaiian or Other Pacific Islanedr; 8=Some other race, ethnicity, or origin; 9=mixed ethnicity (i.e., more than one option selected)
income: household income. Higher numbers indicate higher levels. 
ownincome: participant's income. Higher numbers indicate higher levels. 
otherincome: combined income of other people in household. Higher numbers indicate higher levels. 
employment: employment status. 1=employed for wages; 2=self-employed; 3=out of work and looking for work; 4=out of work but not currently looking for work; 5=a homemaker; 6=a student; 7=retired; 8=unable to work; 9=other.
adult_size: number of adults in household. In Study 3, this includes the participant; in Studies 4 and 5, it excludes the participant.
child_size: number of children in household.
unimodal_1 to bimodal_8: these columns hold the attractiveness ratings for the 8 different times-to-maturity (ordered from shortest to longest; e.g., unimodal_1 holds the attractiveness rating for the account that matures in 4 months), as described in the paper and Supplementary Materials. Higher numbers indicate higher attractiveness.
SSS: subjective socioeconomic status. Higher numbers indicate higher positions on the "ladder".