Discontinuous Measurement: Interval Recording and Time Sampling | 6th ed. | BCBA Exam Prep

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00:00 Introduction to Discontinuous Measurement
00:39 Why Discontinuous Measurement Is Heavily Tested
01:15 Measurement Systems in ABA
01:46 What Is Discontinuous Measurement?
02:05 Limitations of Discontinuous Measurement
02:35 Types of Discontinuous Measurement
03:03 Whole Interval Recording
03:45 Partial Interval Recording
04:35 Momentary Time Sampling (MTS)
05:05 Planned Activity Check (PLACHECK)
05:54 Overestimation vs Underestimation
06:13 Choosing the Right Measurement System
07:48 BCBA Exam Decision Rules and Key Takeaways
Hi! Welcome back to BCBA Exam Prep.

In this video, we review **discontinuous measurement**, including **interval recording and time sampling**, which are commonly used when continuous measurement is not feasible in applied behavior analysis (ABA).

Discontinuous measurement is a **high-frequency topic on the BCBA exams** because it tests your ability to:
• Select the appropriate measurement system
• Understand accuracy trade-offs
• Identify overestimation and underestimation
• Make data-based decisions under real-world constraints

In this video, you will learn:
• What discontinuous measurement is and when it is used
• The limitations of interval recording and time sampling
• Whole interval recording, partial interval recording, and momentary time sampling (MTS)
• Planned Activity Check (PLACHECK)
• How to predict overestimation and underestimation
• How discontinuous measurement appears on the BCBA exam

This video is designed for **RBTs, BCaBAs, and BCBA candidates** preparing for the **6th Edition BCBA Exam**.
🔹 BCBA® Exam Practice
Try a free full-length BCBA® mock exam here:
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BCBA Exam Prep focuses on **exam-style decision-making**, helping you think like a BCBA—not just memorize definitions.

For additional study resources, explore our full BCBA Task List video series on this channel.

If you have questions about discontinuous measurement, interval recording, or time sampling, feel free to leave a comment below.
We’re happy to help.

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