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In logistic regression, the log-likelihood statistic is used to:

When considering a diagnostic test for perioperative complications, what is the primary consideration for choosing an optimal cut-off value?

When adding patient age as a second predictor in a regression model for surgical duration, what does an increase in adjusted R-squared indicate?

Which of the following methods adjusts for publication bias in meta-analysis?

In a study of preoperative hemoglobin levels and postoperative recovery time, the y-intercept of the regression line represents:

A nurse anesthetist is analyzing the relationship between patient weight (kg) and required propofol dose (mg) using the regression equation: Dose=2.5×Weight+50Predict the propofol dose for a patient weighing 80 kg. Enter a whole number only.

In a regression model for predicting extubation time, which assumption must hold true for residuals?

If a nurse anesthetist uses a regression model to predict fluid requirements based on patient weight, what does a significant p-value for weight indicate?

Multicollinearity in a logistic regression model can:

Given the following data:Observed agreement (Po) = 0.72Expected agreement (Pe) = 0.50Calculate Cohen’s kappa (K). K= (Po−Pe) / (1 – Pe)