Mastering the Basics of Visual Analysis (Standard)

Lesson 1: Introduction to Single-Subject Research
21 Pages
1.1 How does this work?
1.2 Who is this for?
1.3 What will I learn?
1.4 Purpose of Single-Subject Research
1.5 Baseline vs. Intervention
1.6 Baseline vs. Intervention Example
1.7 Purpose of Baseline
1.8 Using Baseline to Describe Data
1.9 Using Baseline to Make Predictions
1.10 Basic Steps for Evaluating an Intervention
1.11 Measure Behavior During Baseline
1.12 Implement the Intervention
1.13 Graph the Data and Use Visual Analysis
1.14 Knowledge Check
1.15 Parts of a Single-Subject Graph
1.16 Practice Identifying Parts of a Graph
1.17 Knowledge Check
1.18 Importance of Replication
1.19 Replication in Single-Subject Research
1.20 Basic Effect
1.21 Review
Lesson 2: Level Change
31 Pages
2.1 Types of Changes in Data Patterns
2.2 Definition of Level
2.3 Estimating Level Visually
2.4 Examples of Level
2.5 Practice Estimating Level
2.6 Estimating Level and Variability
2.7 Estimating Level When Data Are Variable
2.8 Using a Band to Estimate Level
2.9 Using a Band to Estimate Level: Too Low
2.10 Using a Band to Estimate Level: Too High
2.11 Using a Band to Estimate Level: Just Right
2.12 Practice Using a Band to Estimate Level
2.13 Comparing Level in Baseline to Level in Treatment
2.14 Example #1: Comparing Level Between Conditions
2.15 Example #2: Comparing Level Between Conditions
2.16 Practice Detecting a Change in Level
2.17 Detecting Smaller Changes in Level
2.18 Practice Detecting a Smaller Change in Level
2.19 Detecting a Change in Level with Variability
2.20 Detecting a Change in Level with Variability
2.21 Example #1: Predicted Treatment Level
2.22 Example #1: Actual Treatment Level
2.23 Example #2: No Level Change
2.24 Practice Detecting a Change in Level with Variability
2.25 Example of Detecting a Change in Level with Increased Variability
2.26 Example of Detecting a Change in Level with Increased Variability
2.27 Example of Detecting a Change in Level with Increased Variability
2.28 Example of Detecting a Change in Level with Increased Variability
2.29 Example of Detecting a Change in Level with Increased Variability
2.30 Practice Detecting a Change in Level with Increased Variability
2.31 Review
Lesson 3: Slope Change
45 Pages
3.1 Definition of Slope
3.2 Example of Increasing Slope
3.3 Example of Decreasing Slope
3.4 Example of Flat Slope
3.5 Example of Increasing Slope with Greater Variability
3.6 Example of Decreasing Slope with Greater Variability
3.7 Practice Describing Slope of Data #1
3.8 Example of Flat Slope
3.9 Example of Slightly Increasing Slope
3.10 Example of Slightly Decreasing Slope
3.11 Practice Describing Slope of Data #2
3.12 Estimating Slope with Variable Data
3.13 First Step in Estimating Slope with Variable Data
3.14 Second Step in Estimating Slope with Variable Data
3.15 Third Step in Estimating Slope with Variable Data
3.16 Estimating Slope with Variable Data Example #1: Connect First and Last Data Points
3.17 Estimating Slope with Variable Data Example #1: Connect High and Low Data Points
3.18 Estimating Slope with Variable Data Example #1: Adjust Angle of Original Slope Line
3.19 Estimating Slope with Variable Data Example #2
3.20 Estimating Slope with Variable Data Example #2: Connect First and Last Data Points
3.21 Estimating Slope with Variable Data Example #2: Connect High and Low Data Points
3.22 Estimating Slope with Variable Data Example #2: Adjust Angle of Original Slope Line
3.23 Estimating Slope with Variable Data Example #2: Be Wary of Single Data Points
3.24 Estimating Slope with Variable Data Example #2: Do Not Let Single Data Points Overly Influence Estimate of Slope
3.25 Estimating Slope with Variable Data Example #3
3.26 Estimating Slope with Variable Data Example #3: Connect First and Last Data Points
3.27 Estimating Slope with Variable Data Example #3: Connect High and Low Data Points
3.28 Estimating Slope with Variable Data Example #3: Adjust Angle of Original Slope Line
3.29 Estimating Slope with Variable Data Example #3: Adjust Angle of Original Slope Line Again
3.30 Estimating Slope with Variable Data Example #4: Connect First and Last Data Points
3.31 Estimating Slope with Variable Data Example #4: Connect High and Low Data Points
3.32 Practice Estimating Slope of Data
3.33 Comparing the Slopes of Two Phases
3.34 Predicting Slope Based on Baseline
3.35 Comparing Observed Slope to Predicted Slope
3.36 Describe the Baseline Slope
3.37 Intervention to Decrease Slope
3.38 Compare Observed Slope to Baseline Slope
3.39 Compare Treatment Slope to Baseline Slope
3.40 Determine if Treatment Caused Change in Slope
3.41 Practice Detecting a Change in Slope
3.42 Detecting a Change in Slope with Greater Variability
3.43 Detecting a Change in Slope with Greater Variability
3.44 Practice Detecting a Change in Slope with Greater Variability
3.45 Review
Lesson 4: Putting It All Together
26 Pages
4.1 Evaluating Slope and Level Together
4.2 Practice Estimating Level
4.3 Example of a Slope Change AND a Level Change
4.4 Example of a Slope Change with NO Level Change
4.5 Example of NO Slope Change with a Level Change
4.6 Example of NO Slope Change and NO Level Change
4.7 Determining if Treatment Data Are Different Than Baseline Predicts
4.8 Example #1: Estimate the Baseline Slope
4.9 Example #1: Extend Line into Treatment Phase
4.10 Example #1: Compare Actual Data to Predicted Data
4.11 “Different” Means Slope OR Level Is Different From Prediction Line
4.12 Example of Treatment Data That Are Different From Predicted Data
4.13 Example #2: Estimate the Baseline Slope
4.14 Example #2: Extend Line into Treatment Phase
4.15 Example #2: Compare Actual Data to Predicted Data
4.16 Practice Detecting a Change Between Treatment and Baseline #1
4.17 Sample Data for an Intervention to Decrease Behavior
4.18 Determine if Actual Data Are Different from Predicted Data
4.19 Example of No Change in Either Slope or Level
4.20 Determining if the Intervention Caused a Change in Level
4.21 Sample Data for an Intervention to Increase Behavior
4.22 When Treatment Data Are Different
4.23 Practice Detecting a Change Between Treatment and Baseline #2
4.24 Introduction to Final Practice Items
4.25 Practice Detecting a Change Between Treatment and Baseline #3
4.26 Review
Final Quiz for Mastering the Basics of Visual Analysis (Standard)
Mastering the Basics of Visual Analysis by Katie Wolfe and Timothy A. Slocum is © 2015-2024 FoxyLearning LLC and distributed under CC BY-NC-SA
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3.1 Definition of Slope

Mastering the Basics of Visual Analysis (Standard) Lesson 3: Slope Change 3.1 Definition of Slope
This is the open-access version of this module and your progress is not tracked or recorded
BCBAs: Earn 2 CEUs for completing this tutorial at CEUniverseInstructors: Use this tutorial to supplement your courseBuy the standard version to have your progress recorded

An intervention might cause an immediate change in the level of the behavior, but often an intervention changes the slope of the behavior. The slope is the overall direction that the behavior takes over time. You might remember from middle school that the slope of a line is the rise—or the change in Y value—divided by the run—or the change in time. In this graph, about 12 responses occur during the first session. In the second session, about 14 responses occurred, and during the third, there were about 16 responses. Each day the student is engaging in two more responses than she did on the day before. This behavior has an increasing slope. You’re not going to be calculating the slope, but instead, you’ll learn how to visualize it.

A graph illustrating the slope of sessions over time.

Changes in Data Patterns

Level Change

Slope Change

Slope & Level Change

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