The data files uploaded here include: 1. **ADOScodes.csv**: Results are shown for the ADOS-2. Codes for each item from A1 to E3 are shown; and then codes are repeated for the 11 items that contribute to the algorithm that classifies individuals as non spectrum, autism spectrum or autism; and finally totals and classifications are shown. 2. **FactorScores.csv**: File shows factor scores calculated for each participant for core language and social understanding, based on the confirmatory factor analysis reported in Wilson & Bishop (2019). "If you catch my drift..." 3. **Implicature.csv**: File shows accuracy, response and reaction time on all items of the Implicature Comprehension Test; file also includes total score on the implicature items (imp_total), total score on the explicit-response control items (exp_acc), number of time-outs on implicature items (Ntimeouts), and coding for outlying participants (0 or 1) based on whether a participant scored at least 7 on the control items of the test. 4. **implicature_itemcodes.csv**: File indicates which item type each item belongs to; there are 3 practice items, 37 implicature items (of which one was excluded during analysis), 10 explicit-response control items, and "don't know" items -- i.e. items on which "don't know" was seen as the legitimate answer.