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Trend in Visual Inspection
When conducting visual inspection in single-subject research, trend describes the gradual, continuous increase or decrease in the dependent variable across sequential observations. A treatment's effect is often indicated by a change in trend, particularly when the trend reverses direction upon the introduction of the intervention, such as an unwanted behavior increasing during baseline but decreasing during treatment.
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Research Methods in Psychology - 4th American Edition @ KPU
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Level in Visual Inspection
Trend in Visual Inspection
Latency in Visual Inspection
Visual Inspection Data Patterns
Limitations of Visual Inspection
Statistical Analysis in Single-Subject Research
What is the primary method of data analysis used in single-subject research to determine the effect of the independent variable?
In single-subject research, visual inspection is used to calculate the statistical significance (p-value) of an independent variable's effect.
A researcher is conducting a visual inspection of a graph from a single-subject study to determine the effect of an intervention. Match each observation of the data with the corresponding component of visual inspection being applied.
Arrange the following hypothetical outcomes of a visual inspection in order from the pattern that provides the weakest evidence of a treatment effect to the pattern that provides the strongest evidence of a treatment effect.
You are tasked with designing the data analysis protocol for a new single-subject research study. To correctly establish a visual inspection methodology, which of the following procedures should you construct?
Arrange the steps of visual inspection in single-subject research in the correct chronological order, as they are typically performed during data analysis.
A researcher studying a participant's social anxiety observes that the participant initiated 10 conversations per day during the baseline phase and 11 per day during the treatment phase. If the researcher concludes the therapy was ineffective because this slight change was not large enough to be clearly seen on the graph, they are evaluating that the therapy did not have a(n) _____ effect.
In single-subject research, instead of using inferential statistics to evaluate group differences, researchers rely on ____ to analyze graphs of individual participant data and determine the treatment's effectiveness.
A researcher uses an AB design to evaluate the effectiveness of a behavioral intervention on a student's off-task behavior. During the baseline (A) phase, the student's off-task behavior shows a steady, prominent downward trend. When the intervention (B) is introduced, the behavior continues to decrease at the exact same rate. If the researcher concludes through visual inspection that the intervention caused the reduction in off-task behavior because the behavior is lower during the treatment phase than it was at the start of baseline, this application of visual inspection is correct.
In single-subject research, visual inspection requires analyzing specific graphical patterns to determine if a behavior change can be causally attributed to the intervention. Match each visual pattern observed during data analysis with its corresponding methodological implication for drawing causal conclusions.
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A researcher studying a student's disruptive behavior observes that the frequency of the behavior increases steadily every day during the baseline phase. Once a reward system is introduced, the behavior begins to decrease steadily each day. Which aspect of visual inspection has shifted in this scenario?
Match each research scenario with the specific type of trend (or lack thereof) it demonstrates during the visual inspection of single-subject research data.
A researcher is analyzing data from a single-subject study to determine if a treatment was effective. Arrange the logical steps required to perform a visual inspection of the trend to determine if the intervention changed the behavior's trajectory.
A researcher is justified in evaluating an intervention as the cause of a behavior's reduction if that behavior was already decreasing during the baseline phase and continues to decrease at the identical rate after the intervention is introduced.
In single-subject research, which of the following observations during visual inspection would most likely indicate a treatment effect based on 'trend'?
Match each term related to visual inspection in single-subject research with the specific data pattern it describes.
In visual inspection of single-subject research, the gradual, continuous increase or decrease in the dependent variable across sequential observations is known as _____.
During a single-subject study on classroom disruption, a researcher records the number of outbursts per day. During the baseline phase, the daily count is stable at exactly 10, 10, 10, and 10. Immediately after a token economy is introduced, the count drops and stabilizes at 2, 2, 2, and 2. True or False: This immediate, dramatic drop in the behavior's frequency represents a change in trend.
A clinical psychologist evaluates a token economy intervention designed to reduce aggressive outbursts in a child.
The researcher records the daily frequency of outbursts over ten sessions: Baseline Phase: 15, 13, 10, 8, 5 Treatment Phase: 4, 4, 3, 2, 1
In analyzing this dataset, the psychologist determines that they cannot confidently attribute the reduction in outbursts to the token economy. This is because visual inspection reveals that a(n) ____ trend was already established during the baseline phase, rendering the treatment's effect ambiguous. (Provide a one-word adjective describing the direction of this baseline trend.)
An educational psychologist is evaluating three different single-subject design graphs to determine which study provides the strongest visual evidence that the intervention caused a therapeutic change in behavior.
Arrange the following data patterns in order from the strongest evidence of a positive intervention effect (Order 1) to the weakest/least evidence of a positive intervention effect (Order 3) based on the visual inspection of their trends.