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. Author manuscript; available in PMC: 2015 Dec 1.
Published in final edited form as: J Autism Dev Disord. 2014 Dec;44(12):3168–3184. doi: 10.1007/s10803-014-2182-y

Table 3.

ADI-R Restricted, Repetitive, and Stereotyped Patterns of Behaviors Domain - Current Rating

OO HFA Mann-
Whitney
Z P r
N 33 43

Current Behavior Algorithm
Encompassing Preoccupation
or Circumscribed Interest
0.39 1.39
(0.61) (0.95) 296.00 4.68 <.001 0.54
(0–2) (0–4)

Apparently Compulsive 0.18 0.80
Adherence to Nonfunctional (0.46) (113) 505.00 2.78 0.005 0.32
Routines or Rituals (0-2) (0–4)

Stereotyped and Repetitive
Motor Mannerisms
0.30 0.70
(0.53) (0.79) 531.50 2.29 0.02 0.26
(0-2) (0-2)

Preoccupation With Parts of 0.27 0.61
Objects of Nonfunctional (0.45) (0.65) 526.50 2.37 0.02 0.27
Elements of Materials (0-1) (0-2)

1.15 3.50
Total (144) (2.25) 262.00 4.85 <.001 0.56
(0–5) (0–9)

ADI RRB Items - Current Rating
0.09 0.23
Unusual Preoccupations (0.38) (0.52) 640.00 −1.52 0.13 0.17
(0–2) (0–2)

0.30 1.34
Circumscribed Interests (0.53) (103) 299.50 4.69 <.001 0.53
(0-2) (0–3)
None 73% 22%
Mild 24% 39% 22.11 <.001 0.54
Moderate/Severe 3% 39%

Repetitive Use of Objects or 0.03 0.20
632.00 −1.83 0.07 0.21
(0.17) (0.55)

Interest in Parts of Objects (0–1) (0–3)

0.15 0.50
C ompul sions/Rituals (0.36) (0.88) 604.00 −1.70 0.09 0.19
(0-1) (0–3)

0.27 0.52
Unusual Sensory Interests (0.45) (0.63) 580.50 −1.77 0.08 0.20
(0–1) (0–2)

Undue General Sensitivity to Noise 0.42 0.84
(0.56) (0.81) 517.50 2.37 0.02 0.27
(0-2) (0–3)
None 61% 36%
Mild 36% 48% 5.95 0.05 0.28
Moderate/Severe 3% 16%

Abnormal, Idiosyncratic, 0.27 0.52
Negative Responses to Specific (0.52) (0.73) 597.50 −1.59 0.11 0.18
Sensory Stimuli (0–2) (0–3)

Difficulties with Minor 0.21 0.68
Changes in Own Routines or (0.48) (0.86) 500.00 2.76 0.01 0.31
Personal Environment (0-2) (0–3)
None 82% 52%
Mild 15% 32% 7.67 0.02 0.32
Moderate/Severe 3% 16%

Resistance to Trivial Changes
in the Environment
0.09 0.27
(0.29) (0.59) 639.00 −1.42 0.16 0.16
(0-1) (0–2)

0.06 0.23
Unusual Attachment to Objects (0.24) (0.53) 601.00 −1.67 0.10 0.19
(0-1) (0–2)

0.21 0.57
Hand and Finger Mannerisms (0.42) (0.87) 591.50 −1.72 0.08 0.20
(0–1) (0–3)

Other Complex Mannerisms or 0.09 0.41
558.00 2.51 0.01 0.29
(0.38) (0.76)

Stereotyped Body Movements (0–2) (0–3)
None 94% 70%
Mild 3% 23% 6.93 0.03 0.30
Moderate/Severe 3% 7%

Note. Table reports means, followed by SDs and ranges in parentheses. For significant findings on individual ADI items, percentages of participants who exhibited mildly repetitive behavior (no impairment in functioning, received “1” on the ADI item) or moderate to severe repetitive behavior (received a 2 or 3 on the ADI item) are reported.