Because these data are used to determine treatment effects, it is imperative that accuracy be high, or a clear determination cannot be made as to whether behavior change is due to the treatment strategy, a change in the measured behavior, or both (O’Neill et al., 2011). If the data are compared and the IOA is low, the BCBA may alter the definition and/or provide moretraining to the paraprofessional(s). A BCBA will conduct IOA probes by collecting data alongside a paraprofessional and then calculating the percentage of agreements between the observers (O’Neill, McDonnell, Billingsley, & Jenson, 2011), to ensure that the operational definition captures the target behavior and that the paraprofessional has been trained adequately in data collection methods. This is referred to as interobserver agreement (IOA). Therefore, the operational definition must provide the observable scope of the behavior such that two or more people can agree on whether the behavior occurred or not. In order for paraprofessionals to collect accurate data they must know the parameters of the target behavior they are collecting data on. An operational definition is a clear and technological description of the behavior of interest (also known as topography). Therefore, before a behavior of interest can be measured it must be described in observable terms. Clinical decisions before treatment (baseline) and during treatment are based upon these data and graphs.īehavioral Definitions If you recall from module 1, behavior is observable and measurable. Those target behaviors are then graphed and visually inspected by a BCBA. Therapists collect data on specific target behaviors (behaviors targeted for increase and behaviors targeted for decrease). The process of measuring and analyzing treatment data to make informed decisions about the course of treatment is referred to as data-based decision making. For instance, it is also necessary to evaluate the effectiveness of treatments with the individuals we serve in clinical practice. Measurement and data analysis of behavior are necessary at all levels of ABA. Evidence-based treatments are validated via experimental analyses inclusive of measurement and data analysis. In Module 1, ABA was identified as an evidence-based practice, meaning that it is scientifically validated. Behavior Analyst Certification Board Registered Behavior Technician™ (RBT®) Task List 2nd EdĪ-02 Implement continuous measurement procedures (e.g., frequency, duration).Ī-03 Implement discontinuous measurement procedures (e.g., partial & whole interval, momentary time samplingĪ-04 Implement permanent product recording proceduresĪ-06 Describe the behavior and environment in observable and measurable terms
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