Regarding the independent t-test equation:

a. What does it tell about a study to have the numerator of the t-test (only the top two numbers) result in a large number?

b. What does it tell about a study when the denominator (SEM) of the t-test is small?

c. What does it tell about a study when the overall equation for the t-test is a big number?

Say we were testing the effects of taking calcium on bone density levels and obtained a positive and significant value for our independent t test result. What would you write (using APA format) when performing a percentage of variance explained test on the data and received a value of r2=.38.