Correlation (the Pearson product-moment correlation coefficient) Moving away from parametric tests of difference, we now consider tests of association or correlation for data which are considered to conform to parametric assumptions.
In this work, Weldon (1893) computes the mean, the mean error, and the modulus. His greater mathematical sophistication in this work is evident. He states: The probable error is given below, instead of the'mean error, because it is the ...
This book presents an historical overview of the field--from its development to the present--at an accessible mathematical level.
This is an ideal companion to core textbooks and will serve a clearer understanding of statistical methods in psychology.
This revision guide book covers the major areas of Statistical Analysis covered in Undergraduate Psychology.