Behavior Intervention Monitoring Assessment System

James L. McDougal, Psy.D.
Achilles N. Bardos, Ph.D.
Scott T. Meier, Ph.D.


The Behavior Intervention Monitoring Assessment System (BIMAS™) is a measure of social, emotional and behavioral functioning in children and adolescents ages 5 to 18 years. The BIMAS Standard includes 34 change-sensitive items that are used for universal screening and for assessing response to intervention. The BIMAS Standard items were developed based on years of research and a scientific model for selecting items that are sensitive to change called Intervention Item Selection Rules (IISRs; Meier, 1997, 1998, 2000, 2004).  The BIMAS is the only commercially available measure comprised of items with demonstrated change sensitivity based on the IISRs model.

The BIMAS Flex is an additional pool of behavioral items that provide information on specific intervention targets or goals within the five areas assessed by the Standard Form. The BIMAS offers an online Data Management System with dynamic analysis, graphing and reporting options. This allows assessors to manipulate data in a variety of ways in real time to assist in evidence-based decision-making within an Response to Intervention (RtI) framework.

The BIMAS is a brief, repeatable multi-informant measure that is useful for behavioral universal screening, progress monitoring, outcome assessment, and program evaluation within the RtI framework. BIMAS provides evidence-based data and outcome reports on individuals and groups.

There are three main objectives:

  1. Universal Screening – By comparing each student’s scores on the BIMAS to a normative group, the BIMAS Standard can be employed as a brief screening device to detect students in need of further assessment and to identify their respective areas of need. 
  2. Student Monitoring – To provide feedback about the progress of the individual student or groups in intervention programs.
  3. Program Evaluation – To assess changes in behavioral concerns and adaptive skills in a group of students receiving psychosocial interventions (e.g. school-based mental health and special education programs provided on an individual or group basis).

Back to the top

Scales & Forms

The BIMAS is comprised of standard scales (BIMAS Standard) which can be used as a screening device, to collect baseline data at the beginning of intervention, and for periodical progress monitoring. The BIMAS also is comprised of a pool of items that can be used to develop customized behavioral intervention goals for frequent monitoring (BIMAS Flex).
  1. BIMAS Standard
    • Can be used as a brief screener, a tool for treatment monitoring, or for program evaluation (or combination)
    • Consists of 34 change-sensitive items on 5 subscales with forms for parents and teachers (ages 5-18 years), and youth (ages 12-18 years) to complete with both standardized scale-level and item-level norms established from a U.S. national sample closely matching the census
    • Also available is a non-norm-referenced clinician form for rating youth 5 to 18 years
  2. BIMAS Flex
    • Distinct, more specific behavioral items (10-30) for each of the 34 BIMAS Standard form items on the 5 scales
    • Both positively and negatively worded items to select from
    • Assessors can customize treatment goals by selecting behaviors of concern and create three-to-five-item mini-assessments for
    • frequent progress monitoring to assess change in behavioral concern or adaptive skills
    • Assessors can make notes to describe specific behaviors, response to intervention, or to add other information about the student
  • Behavioral Concern Scales - Identify Risks 
    • Conduct - anger management, bullying behaviors, substance abuse, deviance
    • Negative Affect - anxiety, depression
    • Cognitive/Attention - attention, focus, organization, planning, memory, planning, organization
  • Adaptive Scales - Identify Strengths and Areas of Improvement
    • Social - social functioning, friendship maintenance, communication
    • Academic Functioning - academic performance, attendance, ability to follow directions

To download a .pdf version of the BIMAS info sheet, click here.

Back to the top


James L. McDougal, Psy.D.,
Achilles N. Bardos, Ph.D.
& Scott T. Meier, Ph.D.

Age Range
  • Self Form: 12-18 (School Grade: 6-12)
  • Teacher, Parent & Clinician Forms: 5-18 (School Grade: K-12)
Administration Time 
5-10 minutes

Administration Type
  • Teacher-completed
  • Parent-completed
  • Youth-completed
  • Clinician-completed

Qualification Level B


  • Paper Administration
  • Online (administration and scoring)