title: What does 'score' mean in scikit-learn's cross_val_score? Does it mean accuracy?
body: <p>I am new to machine learning, and am using k-fold cross validation on my model. I am using <a href="https://scikit-learn.org/stable/modules/generated/sklearn.model_selection.cross_val_score.html" rel="nofollow noreferrer">cross_val_score</a>.</p>
  
  <p>The documentation states that <code>cross_val_score</code> returns an array of "scores." Is score the same as accuracy? I can't really find an answer to this online.</p>