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Rates of computational errors for scoring the SIRS primary scales.

Elizabeth A Tyner¹, Richard I Frederick

¹Department of Psychology.

Psychological Assessment

|July 17, 2013

Summary

Scoring errors are common in the Structured Interview of Reported Symptoms (SIRS). Approximately 35% of tests had errors, though corrections rarely changed classifications, suggesting a need for improved scoring strategies.

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Area of Science:

Psychological assessment
Clinical psychology
Psychometrics

Background:

The Structured Interview of Reported Symptoms (SIRS) is a widely used tool for assessing symptom validity.
Accurate scoring is crucial for reliable interpretation of psychological assessments.
Previous research suggests that scoring errors on psychological tests are prevalent.

Purpose of the Study:

To evaluate the frequency and impact of scoring errors in the SIRS.
To compare computer-generated scores with hand-tallied scores.
To identify strategies for minimizing scoring inaccuracies in the SIRS.

Main Methods:

Item scores from the SIRS were entered into a spreadsheet.
Computed scores were compared against examiner hand-tallied scores.
The impact of corrected errors on SIRS classifications was analyzed.

Main Results:

Approximately 35% of SIRS tests contained at least one scoring error.
About 8% of examiner-tallied SIRS scale scores were incorrectly summed.
Correcting identified errors led to a change in classification for only one case.

Conclusions:

Scoring errors in the SIRS are frequent but generally do not significantly alter diagnostic classifications.
The findings highlight the need for improved methods to reduce scoring errors in the SIRS.
Implementing strategies to enhance scoring accuracy is recommended for clinical practice.