The following video is part of our "Motley Fool Conversations" series, in which analyst Rex Moore discusses topics across the investing world. In this series on the psychology of investing, you've learned how anchoring may have hurt Netflix (Nasdaq: NFLX) and Apple (Nasdaq: AAPL) investors, and how confirmation bias kept many from missing Amazon.com's great run-up.

Today, Rex and Buck Hartzell wrap up the series with tips on how to avoid some very costly mistakes. See the entire series:

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Buck Hartzell has no positions in the stocks mentioned above. Rex Moore has no positions in the stocks mentioned above. The Motley Fool owns shares of Apple and Amazon.com. Motley Fool newsletter services recommend Apple, Amazon.com, and Netflix. Try any of our Foolish newsletter services free for 30 days. We Fools may not all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.