License Agreement

By clicking on the download of the Real Statistics Resource Pack or Real Statistics Examples workbooks you agree to the License Agreement.

Click here to download the Real Statistics Resource Pack License Agreement.

2,096 thoughts on “License Agreement”

  19. Thank you Dr. Zaiontz for this enormously useful tool. I have used this add-in and recommended it to others for many years.

    Reply

  43. Good morning Charles,

    I would like to find the validity of my questionnaires using this formula and i need your help. The questions are 43 and i used the 5 Likert scale of 5-Strongly agree, 4- Agree, 3-Neutral, 2-Disagreee then 1-Strongly Disagree

    Thanks
    Okello

    Reply

    • Hello Okello,
      There is no simple approach for testing for validity. The approach depends on the details of what you are using the questionnaire for. One approach is to test the results of this questionnaire with another instrument that is known to be valid.
      Charles

      Reply

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