Hurdle

SNAP-IV 26-Item Teacher Rating Scale (SNAP)

screening

Digital administration of SNAP-IV 26-Item Teacher Rating Scale (SNAP) to collect structured patient inputs for validated score calculation and clinical follow-up.

SNAP-IV 26-Item Teacher Rating Scale (SNAP)

Clinical intent

The SNAP-IV 26-item scale is an abbreviated version of the Swanson, Nolan, and Pelham (SNAP) Questionnaire (Swanson, 1992; Swanson et al., 1983). Items from the DSM-IV criteria for attention-deficit/hyperactivity disorder (ADHD) are included for the two subsets of symptoms: Inattention (items 1–9) and Hyperactivity/Impulsivity (items 10–18). Also, items from the DSM-IV criteria for oppositional defiant disorder (ODD) are included (items 19–26) because ODD is often present in children with ADHD. The scale can be used by the parents and teacher of children and adolescents between the ages of 8 to 18.

Calculation

This is calculated by assigning scores of 0, 1, 2, and 3 to the response categories, respectively, of “Not at all”, “Just a little”, “Quite a bit”, and “Very much”. SNAP is divided into three Subsets: Questions 1 – 9: Inattention Subset Questions 10 – 18: Hyperactivity/Impulsivity Subset Questions 19 – 26: Opposition/Defiance Subset

The scores in each of the three subsets (inattention, hyperactivity/impulsivity, and opposition/defiance) are totalled.

Clinical interpretation

Questions 1 – 9: Inattention Subset < 13 = Symptoms not clinically significant 13 – 17 = Mild symptoms 18 – 22 = Moderate symptoms 23 – 27 = Severe symptoms

Questions 10 – 18: Hyperactivity/Impulsivity Subset <13 = Symptoms not clinically significant 13 – 17 = Mild symptoms 18 – 22 = Moderate symptoms 23 – 27 = Severe symptoms

Questions 19 – 26: Opposition/Defiance Subset < 8 = Symptoms not clinically significant 8 – 13 = Mild symptoms 14 – 18 = Moderate symptoms 19 – 24 = Severe symptoms

Suggested Targets: <13/27 for inattention <13/27 for hyperactivity/impulsivity <8/24 for oppositional defiant disorder

If desired, the average rating for each subset can be calculated by totalling the scores for the items in the subset and dividing by the number of items. The average can be compared with cut-off scores suggestive of ADHD reported in the literature.

References

[1] https://pubmed.ncbi.nlm.nih.gov/18310593/ [2] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3623293/ [3] http://www.shared-care.ca/files/Scoring_for_SNAP_IV_Guide_26-item.pdf

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Interactive preview of the questionnaire. Not for clinical use. Responses are not stored.

SNAP-IV 26-Item Teacher Rating Scale (SNAP) Questionnaire
Please complete this questionnaire. Your responses help your clinical team assess your symptoms and monitor progress over time.
Often fails to give close attention to details or makes careless mistakes in schoolwork or tasks 
Often has difficulty sustaining attention in tasks or play activities 
Often does not seem to listen when spoken to directly 
Often does not follow through on instructions and fails to finish schoolwork, chores, or duties 
Often has difficulty organizing tasks and activities 
Often avoids, dislikes, or reluctantly engages in tasks requiring sustained mental effort 
Often loses things necessary for activities (e.g., toys, school assignments, pencils or books 
Often is distracted by extraneous stimuli 
Often is forgetful in daily activities 
Often fidgets with hands or feet or squirms in seat 
Often leaves seat in classroom or in other situations in which remaining seated is expected 
Often runs about or climbs excessively in situations in which it is inappropriate 
Often has difficulty playing or engaging in leisure activities quietly 
Often is “on the go” or often acts as if “driven by a motor” 
Often talks excessively 
Often blurts out answers before questions have been completed 
Often has difficulty awaiting turn 
Often interrupts or intrudes on others (e.g., butts into conversations/games 
Often loses temper 
Often argues with adults 
Often actively defies or refuses adult requests or rules 
Often deliberately does things that annoy other people 
Often blames others for his or her mistakes or misbehaviour 
Often is touchy or easily annoyed by others 
Often is angry and resentful 
Often is spiteful or vindictive