AFTER MIDTERM EXAM NOTES
PHI COEFFICIENT (φ)
1. χ Will establish (at the .05 alpha level) whether two variables are
related. A significant Chi-Square means we reject the null hypothesis
(which assumes that the two variable are independent. We feel we have
evidence that the two variables are related.
2. φ Gives the numerical value to the relation. The value can range
from zero to one. Zero meaning no relation at all (independence) and
one indicating a perfect relation. If you know one variable’s value you,
you can perfectly predict the value of the other variable.
2 Standardized measure gives way of standardizing
φ = relationship
-perfect relation between row and column = 1
-significant χ relation does exist
-φ gives a numerical value to the