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

Good way to remember Type 1 and Type 2 errors?

  • Author
    Posts
    • Avatar of mincemeat23mincemeat23
      Participant
        • CFA Level 1
        Up
        223
        ::

        This is going to be tested in the exam, and I’m going to screw it up, I just know it.

        Any tips on remembering which type error is which? Help!

      • Avatar of delamanispdelamanisp
        Participant
          • CFA Level 1
          Up
          6
          ::

          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
          Participant
            • CFA Level 1
            Up
            5
            ::

            I know that – I just can’t remember which is which during the exam. Any mnemonics that can help?

          • Avatar of jthimmichjthimmich
            Participant
              • CFA Level 2
              Up
              4
              ::

              Type I: Man pregnant
              Type II Pregnant lady not pregnant

              You’re welcome!

            • Avatar of mincemeat23mincemeat23
              Participant
                • CFA Level 1
                Up
                3
                ::

                Amazing!

              • Avatar of Radnor80Radnor80
                Participant
                  • CFA Level 1
                  Up
                  3
                  ::
                  jthimmich said:
                  Type I: Man pregnant
                  Type II Pregnant lady not pregnant

                  You’re welcome!

                  Love it.

                • Avatar of justingjusting
                  Participant
                    • CFA Charterholder
                    Up
                    2
                    ::

                    Type I error = incorrect rejection of a true null hypothesis (false positive)
                    Type II error = incorrectly retaining a false null hypothesis (false negative)

                Viewing 6 reply threads
                • You must be logged in to reply to this topic.