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Center on Human Development and Disability

CHDD is located on the Lake Washington Ship Canal

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Core Services




CTC - Behavioral Evaluation Center

child and adult in play session  researcher coding video with Mangold software  parent and child    

Raphael Bernier
Raphael Bernier, Ph.D.


Arianne Wallace
Arianne Wallace
Behavioral Phenotyping Consultant

Caitlin Hudac
Caitlin Hudac
Behavioral Phenotyping Consultant


The BEC located in the CHDD Clinic Building provides four observation rooms for behavioral evaluation and phenotyping as well as space to facilitate digital recordings by researchers in the Behavior Observation Laboratory (BOL). The facilities of the BOL are designed to capture and measure a wide array of behaviors, ranging from diagnostic assessments to frame-by-frame analysis of facial expressions. The observations rooms include a suite of four recording studios, observation rooms, and a master control room that contains recording equipment. One studio is specifically designed for table-top testing and will be ideal for conducting structured neuropsychological tests, one studio is specifically designed for interviews with adults, and the two other studios are set up to allow for more flexible observations, including diagnostic testing. The BOL provides investigators with digital color video recording studios for observational research. Each room contains two small, unobtrusive digital remote control Sony BRC-300 robotic color cameras. A computer in the control room connects to the cameras with a Sony RM-BR300 joystick remote control unit that controls their pan-tilt-zoom functions. These cameras are genlocked for frame synchronization using a Horita BG-50 blackburst generator and combined to a single video stream. The output from the cameras goes to a Focus Enhancements MX-4 digital video mixer, which allows production effects such as camera switching, split screen, and picture-in-picture. Next, a Horita SCT-50 serial control titler can overlay captions and a Horita VG-50/VWG-50 can burn a frame accurate time code on the screen. Video data is recorded directly to DVD using a pair of Toshiba DVR430KU digital video recorders. The DVD recording system has dual optical drives for redundant archival recordings, enabling simultaneous utilization by multiple affiliates as well as one backup that is stored elsewhere. Color monitors are positioned so that the camera person and the investigator can observe camera and recorded images as needed. Audio in the studio can be recorded through both a fixed Crown PXM-11 ceiling microphone and Sennheiser G2 wireless microphones. Each studio has a four-channel stereo audio mixer, which can accept both microphone and pre-amplified audio sources. CHDD staff provide consultation and training in the set up of cameras, recording features, lighting, microphone, and video features to meet the unique needs of each study, allowing for high quality digital video recordings. The BEC also has an established testing facility onsite that integrates Eye Gaze Tracking (EGT; Smart Eye Pro 5.0 eye-tracking system (Smart Eye Inc., Sweden) and EEG technologies (Electrical Geodesics Inc. (Eugene, OR): EGI System 400).

Two recent tools have been added to the BEC. First, a 3dMD Surface Imaging Laboratory has been located on the 3rd floor of the CHDD Clinic Building in close proximity to most other BEC resources. Clarification of subtle facial characteristics associated with IDD is especially critical to aiding in gene discovery and illumination of the pathophysiological processes. The 3-Dimensional surface imaging technology is made by 3dMD, LLC (Atlanta, GA). The system utilizes five modular camera units composed of 20 medical-grade, machine vision cameras, an industrial-grade flash system, and 3dMD photogrammetry software to produce clinically accurate 3-dimensional surface images of a subject’s head and face. Capture speed is set at ~1.5 milliseconds, which allows the lab to acquire high quality 3D face and head images for a variety of subject populations, including challenging clinical populations. A Dell Precision T1700 computer uses 3dMD acquisition software to acquire and synch images from the five camera units to produce a 3D image representation. Acquired 3D images may be viewed on the monitor for this computer. An additional monitor displays the five viewpoints of the subject from each of the five camera units and is used to orient the subject to the optimal position for quality image capture. After image acquisition, images are analyzed using 3dMD Vultus Software 2.2 (3dMD, LLC) on a Dell XPS 8700 computer.

Second, a NOLDUS Ethovision System has been added as a resource available to CHDD affiliates. Integrated into the CHDD Clinic Building (Room 391) of the BOL is a ceiling mounted ETHOVISION camera for tracking movement through space over time. The software automatically tracks participants (by shirt color), providing x, y coordinates relative to the center of the room over time. The NOLDUS Ethovision System is a tool that allows for the direct translation of behaviors observed across species, movement through space over time. Historically, the NOLDUS system has served as a key measurement of rodent behaviors as is included in our Animal Behavior Core. The system at the CHDD Clinic Building allows for the tracking of human movement through space over time. The study of an individual’s movement relative to that of another person has implications for the study of social behavior, curiosity, and learning.

Behavioral Phenotyping

A critical service of the BEC component of the CTC consists of consultation and training on tests for behavioral phenotyping and outcome studies. Coordination of use of CHDD clinical and testing space for outcome studies is also part of this service. Consultations on test reliability, validity, feasibility, and any adaptations needed for individuals with IDD are provided. Resources of the BEC include materials and technical expertise in assessment in the domains of cognitive, achievement, and adaptive abilities; memory and language functioning; attention and executive functioning skills; motor development and visual perception; and mood and personality. Specific expertise in the gold standard diagnostic assessment tools for autism spectrum disorder (ASD) is also provided. This service provides consultation and support regarding the selection of behavioral and neurocognitive measurement tools as well as training and supervision of the administration of evaluative assessments. Supervision and support regarding the presentation of clinical findings and feedback to research participants, including written evaluation reports to be used for educational and treatment planning also is provided.

Cognitive Batteries

Wechsler Intelligence Scale for Children – Fifth Edition (WISC-V), Wechsler Abbreviated Scales of Intelligence – Second Edition (WASI-II), Wechsler Preschool and Primary Scale of Intelligence – Fourth Edition (WPPSI-IV), Wechsler Adult Intelligence Scale – Fourth Edition (WAIS-IV), Mullen Scales of Early Learning (Mullen), Differential Ability Scales—II (DAS-II), Stanford-Binet Intelligence Scales, Fifth Edition (SB-5), Raven’s Progressive Matrices (RPM), Leiter International Performance Scale, Third Edition (Leiter-3), Battelle Developmental Inventory 2nd Edition Normative Update (BDI-2 NU), Woodcock-Johnson IV Tests of Cognitive Abilities (WJ IV)

Adaptive Behavior Assessments

Vineland Adaptive Behavior Scales, Third Edition (Vineland-3), Adaptive Behavior Assessment Scale, Third Edition (ABAS-3)

Autism Related Diagnostic Measures and Tools

Autism Diagnostic Observation Schedule, Second Edition (ADOS-2), Autism Diagnostic Interview, Revised (ADI-R), Broader Phenotype Autism Symptom Scale (BPASS), Social Communication Questionnaire (SCQ), Social Responsiveness Scale, Second Edition (SRS-2), Repetitive Behavior Scale-Revised (RBS-R), Communication and Symbolic Behavior Scales (CSBS), Autism Observation Scale for Infants (AOSI), Autism-Spectrum Quotient (AQ), Broad Autism Phenotype Questionnaire (BAPQ), Early Social-Communication Scales (ESCS), Brief Infant-Toddler Social Emotional Assessment (BITSEA), Modified Checklist for Autism in Toddlers, Revised with Follow-Up (M-CHAT-R/F), Screening Tool for Autism in Toddlers and Young Children (STAT), Social Skills Rating System (SSRS)

Language Measures

Comprehensive Assessment of Spoken Language, Second Edition (CASL-2), Peabody Picture Vocabulary Test, Fourth Edition (PPVT-4), Expressive Vocabulary Test, Second Edition (EVT-2), Clinical Evaluation of Language Fundamentals – Fifth Edition (CELF-5), Oral and Written Language Scales, Second Edition (OWLS-II), Comprehensive Test of Phonological Processing, Second Edition (CTOPP-2), MacArthur-Bates Communicative Development Inventories (CDI), Children’s Communication Checklist—2 (CCC-2), Preschool Language Scales, Fifth Edition (PLS-5), LENA

Motor Assessments

Movement Assessment Battery for Children – Second Edition (Movement ABC-2), Purdue Pegboard Test, Alberta Infant Motor Scale (AIMS), Beery-Buktenica Developmental Test of Visual-Motor Integration, Sixth Edition (Beery VMI), Wide Range Assessment of Visual Motor Abilities (WRAVMA), Developmental Coordination Disorder Questionnaire (DCDQ), Grooved Pegboard Test

Executive Function and Memory Tests

NEPSY – Second Edition (NEPSY-II), Behavior Rating Inventory of Executive Functioning (BRIEF), Delis Kaplan Executive Function System (D-KEFS), Wide Range Assessment of Memory and Learning, Second Edition (WRAML2), California Verbal Learning Test – Second Edition (CVLT-II), Wechsler Memory Scale – Fourth Edition (WMS-IV), Children’s Memory Scale (CMS)

Behavioral and Psychiatric Functioning Measures

Child Behavior Checklist (CBCL), Behavior Assessment System for Children, Third Edition (BASC-3), Aberrant Behavior Checklist (ABC), Children’s Depression Inventory 2 (CDI 2), Beck Depression Inventory (BDI), Conners 3rd Edition (Conners 3), Diagnostic Interview Schedule for Children (DISC-IV), Child and Adolescent Symptom Inventory—5 (CASI-5), Play Assessment Scale (PAS), Revised Children’s Manifest Anxiety Scale, Second Edition (RCMAS-2), Yale-Brown Obsessive Compulsive Scale (Y-BOCS), Multidimensional Anxiety Scale for Children 2nd Edition (MASC 2), Beck Anxiety Inventory (BAI)

Achievement Tests

Wechsler Individual Achievement Test – Third Edition (WIAT-III), Woodcock-Johnson IV Tests of Achievement (WJ IV)


To Use Our Services

Investigators who are interested in consulting with the Behavioral Evaluation Center should:

Read about the equipment and services we provide, then

  • For information regarding Behavioral Testing Consulting Services and Patient Recruitment and Database Support, contact Raphael Bernier, Director (, 206-685-7585).
  • For information on the BOL, see the BOL User Page.


University of Washington • Center on Human Development and Disability Box 357920 • Seattle WA 98195-7920 USA • 206-543-7701 •