| Goal Attainment Scaling in Rehabilitation |
Goal Attainment Scaling in Rehabilitation
Background
Measuring effectiveness of brain injury rehabilitation poses major problems due to the heterogeneity of patients deficits and desired outcomes. Particularly at the level of handicap (participation), goals are very much dependent on the individuals lifestyle and aspirations and standardised measures become increasingly difficult to apply.
For example, for some patients being able t
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| Good questionnaire design |
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| RMRm-The Rasch model and the psychometrics of student assessment |
How robust are your examination questions? The psychometrics of student assessment.
Introduction.
Pressures for accountability, transparency and consistency make reliability in assessment a compelling requirement. Yet, how can we be confident in the robustness of our assessment methods? What measures can we take to maintain the standard of difficultly of assessments within our programmes?
The Rasch Measurement Model may have some us
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| RMRm-Turning a hunch into a research project |
Turning a hunch into a research project.
AIM: An introduction to the process of converting unstructured ideas or intuitions into answerable research questions
OBJECTIVES:
To:
Recognize the importance, but also the limitations, of personal curiosity as a motivation for research.
Formulate research questions which are potentially answerable.
Assess the relative importance of different research questions.
Propose operation
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| ROC |
Receiver Operating Characteristics
Receiver operating characteristics are a powerful statistical modeling tool which can be used in medical decision making, particularly when setting threshold values for tests. Receiver operating characteristic curves are a graphical plot of sensitivity of a test Vs 1-specificity for a binary classifier system as the test threshold varies.
Some Basic Statistics
Before we start, I will quickly explai
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| So is it a Clinical Trial |
So is it a Clinical Trial?
The problem with clinical trials in recent years is that anything that is classified as a clinical trial has to go through a registry process which includes payment of a fee (which can in some cases at least be a 4-figure sum). This creates problem for research on small scale projects where there is either no specified funding or very limited funding. We want to share our experience of how we overcame the d
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| Statistical power |
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| excel example of power |
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