CFA CFA General Good way to remember Type 1 and Type 2 errors?

Good way to remember Type 1 and Type 2 errors?

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    • Avatar of delamanispdelamanisp
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        • CFA Level 1
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        RTN (Reject True Null), RFN (Retain False Null). Just remember reject/retain. Repeat it a few times, and you will never forget it. That’s how I memorize such things. If you have a good memory you can memorize entire concepts like this.

      • Avatar of mincemeat23mincemeat23
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          • CFA Level 1
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          5
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          I know that – I just can’t remember which is which during the exam. Any mnemonics that can help?

        • Avatar of jthimmichjthimmich
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            • CFA Level 2
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            Type I: Man pregnant
            Type II Pregnant lady not pregnant

            You’re welcome!

          • Avatar of mincemeat23mincemeat23
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              • CFA Level 1
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              Amazing!

            • Avatar of Radnor80Radnor80
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                jthimmich said:
                Type I: Man pregnant
                Type II Pregnant lady not pregnant

                You’re welcome!

                Love it.

              • Avatar of justingjusting
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                  • CFA Charterholder
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                  2
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                  Type I error = incorrect rejection of a true null hypothesis (false positive)
                  Type II error = incorrectly retaining a false null hypothesis (false negative)

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