Evidence-based assessment/Instruments/Swanson, Nolan and Pelham Teacher and Parent Rating Scale

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Wikipedia has more about this subject: Swanson, Nolan and Pelham Teacher and Parent Rating Scale

The Swanson, Nolan and Pelham Teacher and Parent Rating Scale (SNAP), developed by James Swanson, Edith Nolan and William Pelham, is a 90-question self-report inventory designed to measure attention deficit hyperactivity disorder (ADHD) and oppositional defiant disorder (ODD) symptoms in children and young adults. The questionnaire takes about 10 minutes to complete and is designed for use with children and young adults ages 6–18.^[1]

Scoring and interpretation

Scoring the SNAP-IV is based on a 0-3 scale, with each question being scored as follows based on participant response:

0 points: "not at all"
1 point: "just a little"
2 points: "quite a bit"
3 points: "very much"

Item breakdown

The questions measure different domains of ADHD and ODD. The breakdown is as follows:

1-10: Measures attention deficit hyperactivity disorder inattention symptoms
11-20: Measures attention deficit hyperactivity disorder hyperactivity/impulsivity symptoms
21-30: Measures ODD symptoms
31-40: Measures "general childhood problems"
41-80: Measures non-ADHD disorders
81-90: Measures academic performance and deportment

Interpretation of subscale scores

Subscale scores add all scores on the items in the subset and divided by the total number of items in the subset. Subscale score cutoffs for the disorders are as follows:

ADHD inattentive type: Teacher score of 2.56, parent score of 1.78.
ADHD hyperactive/impulsive type: Teacher score of 1.78, parent score of 1.44.
ADHD combined type: Teacher score of 2.00, parent score of 1.67.
ODD: Teacher score of 1.38, parent score of 1.88.

External Links

References

↑ Atkins, MS; Pelham, WE; Licht, MH (March 1985). "A comparison of objective classroom measures and teacher ratings of Attention Deficit Disorder.". Journal of abnormal child psychology 13 (1): 155–67. doi:10.1007/bf00918379. PMID 3973249.

[1] Atkins, MS; Pelham, WE; Licht, MH (March 1985). "A comparison of objective classroom measures and teacher ratings of Attention Deficit Disorder.". Journal of abnormal child psychology 13 (1): 155–67. doi:10.1007/bf00918379. PMID 3973249.

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