PSYC37H3 Lecture Notes - Differential Diagnosis, Neurosis, Statistical Significance

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Published on 1 Jul 2012
School
UTSC
Department
Psychology
Course
PSYC37H3
Professor
Chapter 12 Topic 12 B Computerized Assessment and the Future of Testing
COMPUTERS IN TESTING: OVERVIEW AND HISTORY
Introduction to Computer Aided Assessment
To explore career options, Computer Aided Assessment is usually used (CAPA).
The umbrella term computer-assisted psychological assessment (CAPA) refers to the entire range of
computer applications in psychology assessment.
COMPUTER-BASED TEST INTERPRETATION: CURRENT STATUS
Computer-based test interpretation, or CBTI, refers to test interpretation and report writing by the
computer.
Scoring Reports
Scoring reports consists of scores and/or profiles a scoring report may include statistical significance
tests and confidence intervals plotted for the test scores they do not include narrative test or explanation
of scores by definition (scoring reports).
Descriptive Reports
A descriptive report goes one step further than a scoring report by providing a brief scale by scale
interpretation of test results they are especially useful when test findings are conveyed to mental health
professionals who have little knowledge of the test in question MMPI to a random mental health
practitioner for example.
Actuarial Reports: Clinical Versus Actuarial Prediction
In clinical judgement, the decision maker processes information in his or her head to diagnose, classify,
or predict behavior.
In actuarial judgement, an empirically derived formula is used to diagnose, classify, or predict behavior.
A common type of actuarial formula is the regression equation in which subtest scores are combined in a
weighted linear sum to predict a relevant criterion (other approaches may work too such as simple cutoff
scores and rule based flow charts)
BOTH can be validated against an external criteria such as a detailed interview (clinical judgement).
Although computers facilitate the use of the actuarial method, these two are not synonymous for it to be
truly actuarial, test interpretations must be automatic and based on empirically established relations if a
computer program embodies the thinking and judgement of a clinician, then it is making a clinical
prediction.
Meehl specified two conditions for a fair comparison of these contrasting approaches to decision making.
First, both methods should base judgements on the same data and second, we must avoid conditions that
can artificially inflate the accuracy of the actuarial approach. When the conditions are met for a fair test,
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Document Summary

Chapter 12 topic 12 b computerized assessment and the future of testing. To explore career options, computer aided assessment is usually used (capa). The umbrella term computer-assisted psychological assessment (capa) refers to the entire range of computer applications in psychology assessment. Computer-based test interpretation, or cbti, refers to test interpretation and report writing by the computer. Scoring reports consists of scores and/or profiles a scoring report may include statistical significance tests and confidence intervals plotted for the test scores they do not include narrative test or explanation of scores by definition (scoring reports). In clinical judgement, the decision maker processes information in his or her head to diagnose, classify, or predict behavior. In actuarial judgement, an empirically derived formula is used to diagnose, classify, or predict behavior. Both can be validated against an external criteria such as a detailed interview (clinical judgement). Meehl specified two conditions for a fair comparison of these contrasting approaches to decision making.

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