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- https://stats.libretexts.org/Courses/Cerritos_College/Introduction_to_Statistics_with_R/09%3A_Hypothesis_Testing/9.05%3A_The___p___value_of_a_testThis mistaken approach is to refer to the p value as “the probability that the null hypothesis is true”. It’s an intuitively appealing way to think, but it’s wrong in two key respects: (1) null hypoth...This mistaken approach is to refer to the p value as “the probability that the null hypothesis is true”. It’s an intuitively appealing way to think, but it’s wrong in two key respects: (1) null hypothesis testing is a frequentist tool, and the frequentist approach to probability does not allow you to assign probabilities to the null hypothesis… according to this view of probability, the null hypothesis is either true or it is not; it cannot have a “5% chance” of being true. (2) even within the …
- https://stats.libretexts.org/Workbench/PSYC_2200%3A_Elementary_Statistics_for_Behavioral_and_Social_Science_(Oja)_WITHOUT_UNITS/07%3A_Inferential_Statistics_and_Hypothesis_Testing/7.07%3A_The_Two_Errors_in_Null_Hypothesis_Significance_Testing/7.7.02%3A_The_p-value_of_a_TestOne problem with the hypothesis testing procedure that has been described so far is that it makes no distinction at all between a result this “barely significant” and those that are “highly significan...One problem with the hypothesis testing procedure that has been described so far is that it makes no distinction at all between a result this “barely significant” and those that are “highly significant”. For instance, imagine that we tested whether people who say they have extra-sensory perception (ESP) really do by naming the pictures on cards, and found that people were able to correctly identify the picture 62 times out of 100 observations, the calculated value falls just inside the critical…
- https://stats.libretexts.org/Courses/Taft_College/PSYC_2200%3A_Elementary_Statistics_for_Behavioral_and_Social_Sciences_(Oja)/02%3A_Mean_Differences/07%3A_Inferential_Statistics_and_Hypothesis_Testing/7.07%3A_The_Two_Errors_in_Null_Hypothesis_Significance_Testing/7.7.02%3A_The_p-value_of_a_TestOne problem with the hypothesis testing procedure that has been described so far is that it makes no distinction at all between a result this “barely significant” and those that are “highly significan...One problem with the hypothesis testing procedure that has been described so far is that it makes no distinction at all between a result this “barely significant” and those that are “highly significant”. For instance, imagine that we tested whether people who say they have extra-sensory perception (ESP) really do by naming the pictures on cards, and found that people were able to correctly identify the picture 62 times out of 100 observations, the calculated value falls just inside the critical…
