Generalization of Single-Subject Self-Injury Treatment
A common question regarding external validity in single-subject research is whether a treatment that effectively reduces self-injury in a couple of children with intellectual disabilities will also work for other children with similar delays in the broader population.
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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?
Learn After
In single-subject research, a key external validity concern is whether a treatment shown to reduce self-injurious behavior in a small number of children with intellectual disabilities can be expected to work for other children with similar conditions in the broader population.
A researcher conducts a single-subject study and finds that a behavioral intervention successfully reduces self-injurious behavior in three children with intellectual disabilities. A colleague asks, 'Can we expect this treatment to work for other children with similar disabilities who were not part of the study?' Which of the following best explains why this question is difficult to answer based on the study alone?
A clinical psychologist is testing a new 'Functional Communication' intervention to reduce self-biting in children with intellectual disabilities. Match each research outcome to the conclusion it supports regarding whether the treatment will work for the broader population.
A researcher has successfully reduced self-injury in two children with intellectual disabilities using a specific behavioral protocol. Arrange the following research steps in the logical order required to systematically analyze whether this treatment will effectively generalize to the broader population.
A clinical researcher has successfully used a functional communication training (FCT) intervention to reduce self-injurious behavior in two children with Down Syndrome. Match each potential follow-up research step to the specific aspect of generalization it evaluates.
In a single-subject study where a treatment successfully reduces self-injury in two children, what is the primary concern regarding the study's external validity?
In single-subject research, if a treatment is shown to successfully reduce self-injurious behavior in a small number of participants, it can be definitively concluded that the same treatment will be equally effective for all other individuals with similar conditions in the general population.
A clinical researcher has successfully reduced self-injurious behavior in two children with intellectual disabilities using a new behavioral intervention. To analyze whether these results can be generalized to the broader population, arrange the following steps in the correct logical sequence.
A clinician reviews a single-subject study where a behavioral treatment reduced self-injury in two children () and immediately decides to apply it to all clients in their facility. When evaluating the clinician's decision according to scientific standards, a critic would judge the implementation as 'premature' because the original study fails to establish sufficient _____ to justify population-wide application.
A school administrator decides to adopt a specific self-injury intervention for an entire district after reviewing a study where it worked for three children in a single-subject design. A researcher critiquing this decision would argue that the administrator is ignoring the study's lack of _____, as findings from a few individuals cannot be automatically assumed to represent the broader population.