Observational Systems

Systematic Observation of Behavior

Overview of Observations

  • Importance of systematic observation for behavioral reliability across settings and time.
  • The distinction between casual observing and structured observation methods.

Methods of Observation

General Overview
  • Behavior analysts conduct observations to sample behaviors systematically.
  • Observations are foundational for functional assessments.
  • Weekly assignments will progressively guide students from general to specific observational strategies.
Characteristics of Systematic Behavioral Observations
  • Continuous observation is ideal but nearly impossible.
  • Aim for representative samples of behavior:
    • Select specific times and environments for observations.
    • Different settings (e.g., classroom, lunchroom, playground) may yield different behaviors due to various external variables.
    • Recognize inconsistencies in behavior across different contexts and individuals.

Problems Encountered in Observations

Reactivity
  • Observer presence can alter the behavior of subjects being observed.
  • Example: Observations in a classroom can change classroom dynamics.
  • Techniques to minimize reactivity:
    • Become a participant observer, thus reducing the novelty of the observer to the subjects.
    • Establish rapport with subjects by regular interaction.
Observer Drift
  • Over time, observers may change their criteria of what constitutes a behavior, generally becoming more lenient.
  • Importance of focused operational definitions to guard against drift.
Complexity
  • KISS principle (Keep it Simple, Stupid): More complex systems lead to more errors.
  • Behavioral coding systems exist, but the simpler the system, the less likely errors will occur.
Expectancy Bias
  • Observers may unintentionally (consciously or unconsciously) look for behaviors aligned with their preconceptions.
  • Importance of maintaining an objective viewpoint.

Methods of Observing Behavior

Frequency Measures
  • Event recording captures how often a defined behavior occurs.
  • Target behaviors must have clear beginnings and endings.
Time Sampling
  • Strategy used to sample behavior over intervals of time rather than trying to capture every occurrence.
Types of Time Sampling
  1. Whole Interval Recording:
    • Records if a behavior occurs for the entire duration of the interval (e.g., 15 seconds).
    • More stringent and less frequently used.
  2. Partial Interval Recording:
    • Records if the behavior occurs at any point during the interval.
    • Tends to overestimate frequency.
  3. Momentary Time Sampling:
    • Measures if the behavior is occurring at specific moments in time (e.g., every 15 seconds).
    • Minimizes need for continuous observation and is generally efficient.
Duration Recording
  • Records the total time a behavior occurs.
  • Useful for measuring how long an individual engages in a particular behavior.
Latency Recording
  • Measures the amount of time from a prompt to the execution of the behavior.
Permanent Product Observation
  • Focuses on the outcome or product of a behavior rather than the behavior itself.
  • Example: Assessing completed homework or projects.
ABC Recording
  • A systematic observation method that looks at:
    • Antecedent: What happens before the behavior?
    • Behavior: What is the specific behavior?
    • Consequence: What is the result of the behavior?
  • Effective in identifying triggers and reinforcements of behaviors.

Observational System Design

  • Choose a target child and a control child to measure behavior accurately in context compared to peers.
    • Preferably use same-sex peers to reduce variability in behavior types.
  • Ensure consistent observation across time and conditions for reliable measures.

Inter-Observer Reliability

  • Conduct observations concurrently with peers to assess the reliability of observations (inter-rater reliability).
  • Aim for a high correlation (ideally at least 0.8).
  • Low reliability may indicate a need for clearer operational definitions or additional training for observers.

Conclusion

  • Emphasize the importance of structured, systematic observations in behavior analysis.
  • Aim for clarity in observational methods to reduce confusion and enhance reliability.
  • Continuous learning and procedural refinement is essential for effective behavioral analysis.