Table 3.
Item content for the items of the AQ that display the most differential item functioning in the different analyses, ordered by severity and the number of analyses that identified these items.
| Item no. | Item content | DIF in analysis |
|---|---|---|
| 30 | I don’t usually notice small changes in a situation, or a person’s appearance. | RM RT TM |
| 29 | I am not very good at remembering phone numbers | RM RT TM |
| 11 | I find social situations easy. | RM RT TM |
| 49 | I am not very good at remembering people’s date of birth. | RM RT TM |
| 26 | I frequently find that I don’t know how to keep a conversation going. | RM RT TM |
| 22 | I find it hard to make new friends. | RM RT TM |
| 21 | I don’t particularly enjoy reading fiction. | RM RT TM |
| 14 | I find making up stories easy. | RM RT TM |
| 24 | I would rather go to the theater than a museum. | RM TM |
| 45 | I find it difficult to work out people’s intentions. | RM TM |
| 46 | New situations make me anxious. | RT TM |
| 35 | I am often the last to understand the point of a joke. | RT |
| 27 | I find it easy to “read between the lines” when someone is talking to me. | TM |
| 40 | When I was young, I used to enjoy playing games involving pretending with other children. | TM |
| 44 | I enjoy social occasions. | TM |
DIF: differential item functioning; RM: Rasch mixture model (analysis 1); RT: Rasch regression tree (analysis 2); TM: traditional methods (analysis 3).