Generalizability of Strong Effects in Single-Subject Research
Single-subject researchers defend their methods by noting that the strong and consistent effects they typically focus on are likely to generalize to others in the broader population, even when these effects are initially observed in very small samples.
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Research Methods in Psychology - 4th American Edition @ KPU
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Addressing External Validity in Single-Subject Research
Example of External Validity Concerns in Single-Subject Research
Generalizability of Strong Effects in Single-Subject Research
Why is the external validity of single-subject research frequently questioned by critics?
If a single-subject study demonstrates that a specific behavioral intervention successfully reduces self-injury in two children, a critic questioning the study's external validity would argue that these results may not necessarily apply to other children in the broader population.
A researcher conducts a single-subject study with three children to evaluate a new social-skills training program. Match each element of this research scenario to its role in a critique of the study's external validity.
A researcher finds that a new intervention successfully reduces social anxiety in two college students. Arrange the following logical steps to represent the process of analyzing why these findings might not apply to the broader population.
Generalization of Single-Subject Self-Injury Treatment
Replication for External Validity in Single-Subject Research
An educational psychologist conducts a single-subject study and demonstrates that a specialized visual-schedule intervention successfully reduces transition-related anxiety in two specific children with developmental delays. If a critic questions the external validity of these findings, what is the core of their concern?
A peer reviewer evaluates a single-subject study involving two participants and concludes that the findings should not be used to inform national healthcare guidelines. This judgment is based on the study's inherent deficiency in _____ validity.
Critics of single-subject research frequently question its external validity because of the difficulty in knowing whether the observed treatment effects will successfully _____ to other individuals in the broader population.
A clinical psychologist publishes a single-subject study showing that a new behavioral intervention successfully reduces self-injury in two children with intellectual disabilities. If they claim this study proves the treatment will be effective for all children with intellectual delays, this claim is invalid because it ignores the inherent external validity concerns caused by the small sample size of single-subject designs.
A researcher publishes a single-subject study examining a treatment for self-injury. Match the elements from the study's critique to their correct descriptions or roles in evaluating external validity.
A researcher claims a self-injury treatment is ready for general use based on a single-subject study of two children. Order the steps an evaluator should take to assess the external validity of this claim, from the initial observation to the final evaluation.
Describe the primary reason why critics frequently question the external validity of single-subject research, and state what specific difficulty they point out regarding the treatment effects observed in these studies.
Explain why advocates of group research would question the researcher's claim that this treatment is ready for widespread adoption. In your explanation, demonstrate your understanding of the relationship between sample size and external validity in this context.
A school psychologist conducts a single-subject study with three students and finds that a new mnemonic strategy significantly improves their spelling test scores. Applying the external validity concerns characteristic of single-subject designs, what main question should a critic ask about these findings before recommending the strategy for all students in the school district?
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Generalization of Conditioning Principles
On what basis do single-subject researchers typically argue that their findings can generalize to the broader population, despite using very small samples?
If a single-subject researcher observes a strong and consistent effect in a study with only two participants, they would typically concede that the finding is too specific to generalize to the broader population.
A single-subject researcher is evaluating the results of three different pilot studies to determine if the findings are likely to generalize to the broader population. Match each research outcome with the conclusion that best applies the logic of single-subject research design.
Arrange the steps of the logical analysis that single-subject researchers use to defend the generalizability of their findings from very small samples to the broader population.
Imagine you are developing a new behavioral intervention for a rare neurodevelopmental disorder and can only recruit three participants () for your single-subject study. To ensure your research design is constructed to provide a defensible basis for generalizability to other children with this disorder, which of the following strategic choices should you build into your protocol?
Single-subject researchers argue that the strong and consistent effects they typically focus on are likely to generalize to the broader population, even when observed in very small samples.
When evaluating whether the findings from a single-subject study are likely to generalize to the broader population, researchers argue that results showing _____ and consistent effects are defensible because they represent a robust phenomenon that is likely to exist beyond the small sample.
Match each research scenario to the most appropriate conclusion regarding its generalizability, based on how single-subject researchers defend their methods.
When analyzing the debate over external validity, single-subject researchers defend their small sample sizes by arguing that the _____ and consistent effects they typically focus on are likely to generalize to others in the broader population.
Order the steps a researcher takes when evaluating and defending the generalizability of a new behavioral intervention using single-subject design logic.
Based on the course materials, how do single-subject researchers defend the generalizability of their findings to the broader population when using very small sample sizes?
Explain why the researchers would argue that their findings are likely to generalize to the broader population, despite the critic's concern about the small sample size.
Imagine you are designing a single-subject study to test a new reading intervention with a sample size of . Apply the defense of generalizability in single-subject research to explain what pattern of results you must demonstrate in your study to argue that your findings will generalize to other students.