Quiz: Explicación vs Predicción

A study aims to determine whether the use of benzodiazepines causes falls in older adults. What type of model is most appropriate?

• Predictive

• Descriptive

• Explanatory

• Exploratory

A model that estimates the probability of dying within one year after a stroke is best classified as which type?

• Explanatory

• Predictive

• Causal

• Experimental

In an explanatory model, why might age and sex be included even if they are not statistically significant?

• They improve the model's ROC

• They are confounders or have face validity

• They reduce mean squared error

• They decrease overfitting

In a predictive model, income level is included even if it does not cause the disease primarily because it:

• Increases statistical significance

• Improves predictive performance

• Controls for confounding

• Reduces sample size

A researcher splits data into 70% training and 30% validation. This step corresponds to:

• A typical step in explanatory models

• External validation of causality

• Internal validation in predictive models

• Adjustment for confounders in regression