Cheryl used age, education, and income to predict scores on a life satisfaction survey. Her regression equation accounted for 58% of the variance in life satisfaction. She collects a new sample and applies her equation. This process is referred to as
A) discriminate testing.
B) sample attenuation.
C) regression reliability.
D) cross-validation.

Question

Quizplus · Accepted Answer

The process described is known as cross-validation, which involves testing the accuracy of a model on a new sample to assess its reliability and effectiveness in predicting outcomes. This helps to avoid overfitting and ensures that the model has generalizability.

Cheryl Used Age, Education, and Income to Predict Scores on a Life