Holdout meaning in this case?

[ZOEYW]

"Researchers usually develop the MDA model on an estimation sample and apply the resulting model to a separate holdout, or predication, sample to check on the general applicability and predictability of the model."

Thanks in advance!

[MikeNewYork]

"Researchers usually develop the MDA model on an estimation sample and apply the resulting model to a separate holdout, or predication, sample to check on the general applicability and predictability of the model."

Thanks in advance!

I have no idea, but then I don't understand the sentence either. What field is this sentence from?

[ZOEYW]

I have no idea, but then I don't understand the sentence either. What field is this sentence from?

Never mind. Now I see. thanks!