Which of the following provide an estimate of how often experimental results could have occurred by chance alone?
A) coefficients of correlation
B) random selections
C) graphical statistics
D) tests of statistical significance

Question

Quizplus · Accepted Answer

Tests of statistical significance provide an estimate of how often experimental results could have occurred by chance alone. This is commonly done by calculating a p-value, which is the probability of obtaining results as extreme or more extreme than the observed results if the null hypothesis (i.e., there is no true effect) is true. A p-value of less than 0.05 (i.e., a 5% chance of the observed results occurring by chance) is typically used as a threshold for rejecting the null hypothesis and concluding that there is a statistically significant effect.

Which of the Following Provide an Estimate of How Often