In this study the investigators aim to use the DAPAR tests (A cognitive assessment which all 17 year old Jewish adolescents in Israel undergo to participate in mandatory military service), which measures intelligence, and is equivalent to the IQ test. The subjects will be persons who had their first psychotic break, at least one year following the DAPAR tests. As part of the study, the participants will re-take the DAPAR tests, after the onset of the psychotic illness.
