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Single Subject Design

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Social Science

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Walden University

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Running head: SINGLE SYSTEM DESIGN

Single System Design

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SINGLE SYSTEM DESIGN 2

Under the single-subject design, the study collects and analyses data from only one

person/subject. Here, data is collected from the subject twice; before and after the

implementation of the intervention. The outcome of Chris’s study with her client George

(Plummer, Makris & Brocksen, 2014b) would lead me to adopt the model of case management

with solution-focused and task-centered approaches. In my view, the single-subject design is

more comprehensive as it lays its focus on a single subject whose assessment has to be

thoroughly done. This increases the reliability and accuracy of the results obtained.

In the case of Chris and George, it has been noted that the initial areas that required

assistance are personal care, long term planning, and the decreased mobility (Plummer, Makris &

Brocksen, 2014b). As such, clinical rating scales were used which led to most of George’s needs

being identified and addressed. This study design also facilitates understanding the impact or

change that is taking place once a specific intervention is implemented. This goes to show the

extent to which the single-subject design is not only thorough but also straight to the point.

A weakness that the single-subject design has is that the results obtained cannot be

generalized to the entire population due to having used only one subject. The study’s external

validity is also in question because it is difficult to apply the results of this study to any other

setting other than the one where the study was performed (Dudley, 2014). For these reasons, for

Chris and her colleagues to submit the study to the evidence-based practice registry, these two

weaknesses must be addressed. This can be achieved by selecting the single subject randomly

among subjects who have the same problem that most patients have to increase its external

validity. Also, the study can pass as an evidence-based one for the specific population or agency

it was conducted as opposed to having it generalized to the entire population. This will solve the

generalizability problem to limit the results of the study to the specific agency and population.

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Running head: SINGLE SYSTEM DESIGN Single System Design Student’s Name Professor’s Name Course Title Date SINGLE SYSTEM DESIGN 2 Under the single-subject design, the study collects and analyses data from only one person/subject. Here, data is collected from the subject twice; before and after the implementation of the intervention. The outcome of Chris’s study with her client George (Plummer, Makris & Brocksen, 2014b) would lead me to adopt the model of case management with solution-focused and task-centered approaches. In my view, the single-subject design is more comprehensive as it lays its focus on a single subject whose assessment has to be thoroughly done. This increases the reliability and accuracy of the results obtained. In the case of Chris and George, it has been noted that the initial areas that required assistance are personal care, long term planning, and the dec ...
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Tags: data collection Social Work Evaluation Single system design social work cases customized research