| Epworth sleepiness scale |
| UWIST mood adjective checklist (UMACL) |
Symptoms | 8-item questionnaire |
| (snoring, nocturnal choking, morning headache, morning confusion, nocturnal awakenings, daytime napping, evening napping, sleepiness whilst driving) |
Cognitive performance | 30 minute SteerClear |
| TrailMaking B |
| WAIS-R performance IQ (Block Design and Digit Symbol Substitution) |
| National Adult Reading Test (NART) |
| Rapid Visual Information Processing (RVIP) |
| 8-choice reaction time |
| Paced Auditory Serial Addition Test (PASAT: 2 second presentation rate) |
| Verbal Fluency |
| Benton Visual Retention Test (BVRT) |
Psychological well being | Hospital Anxiety and Depression Scale (HADS) |
| General Health Questionnaire-28 (GHQ-28) |
| Nottingham Health Profile (NHP) part 2 |