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Assumptions of Single-Subject Research
Single-subject research is guided by three foundational assumptions: focusing intensively on individual behavior to uncover unique differences, discovering causal relationships through rigorous experimental control, and prioritizing the study of effects that possess significant biological or social importance in real-world settings.
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Research Methods in Psychology - 4th American Edition @ KPU
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Process of Single-Case Designs
Uses of Single-Case Designs
Comparison of Single-Subject and Group Research
Comparison of Single-Subject Research and Case Studies
Intensive Focus on Individuals in Single-Subject Research
Early History of Single-Subject Research
Experimental Analysis of Behavior
Theoretical Perspectives in Single-Subject Research
Reversal Design
AB Design
Visual Inspection in Single-Subject Research
Statistical Analysis in Single-Subject Research
Assumptions of Single-Subject Research
Vance Hall's Study on Teacher Attention
Single-Subject Research Designs
Which of the following best characterizes the methodology of single-subject research?
True or False: In single-subject research, the investigator focuses on the behavior of each individual participant as a separate unit of analysis, typically involving between two and ten people in a study.
A psychology researcher is designing a study using a single-subject methodology. Match each specific scenario description below with the core principle of single-subject research it demonstrates.
A researcher is utilizing a single-subject design to analyze whether a specific behavioral intervention causes a reduction in a participant's off-task behavior. To establish experimental control and identify a functional relationship between the intervention and the behavior, arrange the following steps in the correct logical sequence.
A researcher wants to design a quantitative study to test whether a new behavioral intervention reduces the frequency of 'vocal tics' in 3 specific participants. To create a rigorous experiment following the principles of small- design, which of the following protocols should the researcher construct to establish experimental control and demonstrate the intervention's effect on each individual?
True or False: Single-subject research is a qualitative methodology that focuses on subjective experiences rather than utilizing quantitative techniques to analyze objective behavior.
A psychologist reviewing a single-subject (small-) study with only four participants must judge whether the researcher compensated for the absence of a large sample size by applying strict _____ and control over each individual's behavior to ensure scientific rigor.
Match each researcher's study scenario with the corresponding core feature of single-subject research it demonstrates.
A psychologist is analyzing a study that focuses closely on the behavior of four participants. To categorize this methodology, the psychologist notes that since the statistical symbol for sample size is represented by , this type of study is referred to as a small-_____ design.
An editor must evaluate whether a newly submitted manuscript qualifies as a single-subject research design based on its methodological characteristics. Arrange the evaluation steps in the logical order the editor should perform them, from identifying the broad research paradigm to verifying specific design controls.
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Individual Focus Assumption in Single-Subject Research
Causal Relationships in Single-Subject Research
Which of the following is a foundational assumption of single-subject research?
Match each foundational assumption of single-subject research with the statement that best explains its application in a psychological study.
A clinical researcher studying a new intervention for a participant with a severe speech impairment considers the treatment successful because the participant can now order food at a restaurant independently, even though the statistical change in their formal speech score was relatively small. This researcher’s focus on the meaningful, practical impact on the participant's daily life reflects the single-subject research assumption that studies should prioritize effects with significant social or biological importance.
Analyze the logical framework of a single-subject study. Arrange the following research actions in the correct order based on how they systematically fulfill the foundational assumptions of this methodology, from the initial setup to the final evaluation of the results.
Match each foundational assumption of single-subject research with the primary outcome it is intended to achieve according to this methodology.
Social Validity
Which of the following statements best explains the rationale behind the single-subject research assumption that researchers should focus intensively on the behavior of individual participants rather than studying group averages?
A researcher rejects a statistically significant result as 'unimportant' because it fails to improve a participant's daily life in their natural environment. This evaluation of the study's worth is based on the foundational assumption in single-subject research that studies should prioritize effects with significant _____.
A researcher conducts a single-subject study on improving reading fluency in a student with dyslexia and observes consistent improvement across multiple sessions. The researcher then concludes that all students with dyslexia will benefit from this intervention, arguing this generalization is supported by single-subject research's individual focus assumption.
In single-subject research, a baseline phase is collected before introducing any intervention so that subsequent behavior changes can be attributed to the experimental manipulation rather than to outside factors. This practice operationalizes the foundational assumption that single-subject methodology establishes _____ through rigorous experimental control.
A peer reviewer is critically evaluating a published single-subject study to judge whether it properly upholds all three foundational assumptions of the methodology. Arrange the following evaluative steps in the most logically defensible order, from the first check a reviewer should perform to the final overall judgment.
What are the three foundational assumptions that guide single-subject research?
Explain how the psychologist's actions in this scenario align with each of the three foundational assumptions of single-subject research.
Suppose a clinical researcher wants to investigate the efficacy of a new self-calming technique for a patient with panic attacks. How could the researcher design this study to apply the single-subject assumption of discovering causal relationships through rigorous experimental control?