Psychical determinism The type of determinism that stresses mental causes of behavior.
Psychophysical parallelism The contention that experiencing something in the physical world causes bodily and mental activity simultaneously and that the two types of activities are independent of each other.
Public observation The stipulation that scientific laws must be available for any interested person to observe. Science is interested in general, empirical relationships that are publicly verifiable.
Puzzle solving According to Kuhn, normal science is like puzzle solving in that the problems worked on are specified by a paradigm, the problems have guaranteed solutions, and certain rules must be followed in arriving at those solutions.
Rationalism The philosophical belief that knowledge can be attained only by engaging in some type of sys- tematic mental activity.