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Alternating Treatments Design
An alternating treatments design is a variation of single-subject research where two or more distinct treatments are rapidly alternated on a regular schedule. For example, positive attention for studying could be used one day and mild punishment for not studying the next, or one treatment could be applied in the morning and another in the afternoon. This design is a quick and effective way to compare interventions, but only when the treatments are fast-acting.
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Research Methods in Psychology - 4th American Edition @ KPU
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Baseline Phase
Treatment Phase
Internal Validity of Reversal Designs
Multiple-Treatment Reversal Design
Alternating Treatments Design
ABAB Design
Internal Validity in Reversal Designs
ABAB Reversal Design Example
Limitations of Reversal Design
Arrange the phases of a fundamental reversal design (ABA design) in the correct chronological order.
In a research study using a reversal design (ABA), what is the primary scientific purpose of withdrawing the treatment and returning to the baseline condition in the final phase?
A researcher is investigating the effectiveness of a 'gold star' reward system on a student's on-task behavior using a reversal design. Match each specific step of the study to its corresponding phase label in the ABA model.
In a single-subject reversal design (ABA), if a researcher observes that the target behavior does not return to baseline levels after the treatment is withdrawn, they can still definitively conclude that the treatment was the primary cause of the initial change.
When evaluating the appropriateness of a reversal (ABA) design for a specific study, a researcher must ensure that the target behavior is ______; if the behavior will not return to baseline levels once the treatment is removed, the design cannot effectively demonstrate experimental control.
Which of the following alternative names is commonly used to refer to the reversal design, the most fundamental single-subject research design?
In a single-subject reversal (ABA) design, the 'reversal' in the final phase is achieved by introducing an opposite treatment to actively force the behavior back to its baseline state.
A clinical psychologist is evaluating a new deep-breathing exercise to reduce a patient's daily anxiety attacks. Match each proposed action in the study to its corresponding phase within a standard ABA reversal design.
In a research study utilizing a single-subject ABA design, the researcher withdraws the treatment in the third phase specifically to return the participant to the _____, thereby analyzing whether the treatment was the actual cause of any behavioral change.
An educational researcher is evaluating the causal impact of a peer-tutoring program on a student's spelling accuracy using a reversal design. Arrange the steps of the study in the correct chronological order to assess the treatment's effectiveness.
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Which of the following is a necessary condition for an alternating treatments design to effectively compare interventions?
An alternating treatments design is best utilized when a researcher wants to compare interventions that produce slow, permanent changes in a participant's behavior.
A researcher is applying an alternating treatments design to compare the effects of two fast-acting study techniques (Active Recall and Re-reading) on a single student's quiz performance. Arrange the following steps in the correct order to properly implement and evaluate this research design.
A researcher is using an alternating treatments design (ATD) to compare the efficacy of two different study strategies with a single participant. To maintain internal validity and ensure clear results, the researcher must address several methodological challenges. Match each design requirement with the specific analytical justification for why it is essential to prevent confounding or data overlap in this design.
A researcher is designing a study to compare the effectiveness of two fast-acting study techniques—'Active Recall' () and 'Elaborative Encoding' ()—on a student's daily quiz scores. The researcher has access to the student for two -minute sessions each day: one at $9:00 PM. To create a valid alternating treatments design that controls for potential time-of-day effects over a -day period, which of the following schedules should the researcher propose?
In an alternating treatments design, a researcher must complete an entire multi-week phase of one treatment before starting the next treatment.
A researcher is planning a series of studies using an alternating treatments design. Match each researcher action or decision to the specific ATD principle it correctly demonstrates.
A researcher wishes to compare two classroom management strategies using an alternating treatments design. After reviewing the literature, she discovers that Strategy B requires approximately three months of consistent implementation before behavioral improvements become observable. Based on the structural logic of this design—where two conditions alternate rapidly and each condition's effect must be distinguishable on the very next measurement occasion—she concludes that Strategy B is inappropriate because the alternating treatments design only produces interpretable comparisons when both interventions are _____.
A peer reviewer receives a manuscript describing an alternating treatments design study and must render a well-justified verdict on whether the design was used appropriately. Arrange the following evaluative steps in the order a rigorous reviewer should address them, from the most foundational design check to the final overall judgment.
A clinical psychologist is asked to evaluate a research proposal that uses an alternating treatments design to compare two separate, year-long psychotherapy models by switching the model used with a patient every session. The psychologist should judge this design as being methodologically inappropriate for this comparison because the alternating treatments design is only effective when the interventions are _____.
Define the alternating treatments design within single-subject research. In your definition, recall the frequency of treatment alternation and the specific condition under which this design is effective for comparing interventions.
Explain why the therapist's plan is not an appropriate application of the alternating treatments design, focusing on the characteristics of the treatments and how they interact with the design's requirements.
Suppose you are comparing two fast-acting interventions for a student's spelling practice: positive attention for spelling correctly () and mild punishment for misspelling (). Apply the alternating treatments design by describing a concrete, daily schedule for administering these two interventions.