| Symptoms | ADHD (DSM-IV) | Sensory Integration Dysfunction (Ayres) | Learning Related Visual Problems (Kavner) | Nutrition Allergies (Rapp, Crook & Smith) | Normal Child Under 7 (Gesell) |
| Inattention (at least 6 necessary) | |||||
| Often fails to give close attention to details or makes careless mistakes | X | X | X | X | — |
| Often does not listen when spoken to directly | X | X | X | X | — |
| Often has difficulty sustaining attention in tasks or playing activities | X | X | X | X | X |
| Often does not follow through on instructions or fails to finish work | X | X | X | X | X |
| Often has difficulty organizing tasks and activities | X | X | X | X | X |
| Often avoids, dislikes or is reluctant to engage in tasks requiring sustained mental effort | X | X | X | X | X |
| Often loses things | X | X | X | X | X |
| Often distracted by extraneous stimuli | X | X | X | X | X |
| Often forgetful in daily activities | X | X | X | X | — |
| Hyperactivity and Impulsivity (at least 6 necessary) | |||||
| Often fidgets with hands or feet or squirms in seat | X | X | X | X | X |
| Often has difficulty remaining seated when required to do so | X | X | X | X | X |
| Often runs or climbs excessively | X | X | — | X | X |
| Often has difficulty playing quietly | X | X | — | X | — |
| Often “on the go” | X | X | — | X | X |
| Often talks excessively | X | X | X | X | — |
| Often blurts out answers to questions before they have been completed | X | X | X | X | — |
| Often has difficulty awaiting turn | X | X | X | X | X |
| Often interrupts or intrudes on others | X | X | X | X | X |
