Psych Scene

Diagnostic Studies (Notes)

Important issues to consider in Diagnostic Tests – Gold Standard / Selection Bias/Spectrum Bias / Observer Bias / SPPIN and SNNOUT / Measures of Effect – Sensitivity, Specificity, Positive Predictive Value, Negative Predictive Value, Likelihood Ratio of Positive Test, Likelihood Ratio of Negative Test / Worked Example / Likelihood Ratio Nomogram / Receiver Operating Curves (ROC)