For the critical third element of the revised catch rule, the NFL’s Competition Committee could have chosen an objective standard or a subjective standard. The Competition Committee has chosen both.

A criticism of happiness research is that it often relies on what a person says about his or her own happiness. Calling a self-report measure of happiness "subjective well-being" seems not to help ...

The field of psychology is vast, and there are many ways to carve it up. For example, one possible difference is between animal and human psychology. Another division is between science and practice.

After inventing calculus, actuarial tables, and the mechanical calculator and coining the phrase “best of all possible worlds,” Gottfried Leibniz still felt his life’s work was incomplete. Since ...