I.    Thomas Kuhn:  Structure of Scientific Revolution

A.    Normal Science:  Research firmly based on past scientific achievements that are now accepted as a foundation of the field.

B.    Crisis--anomalies become focus of investigation; no longer is the normal science paradigm unquestionably accepted

C.    Scientific Revolution--the old paradigm is rejected in favor of a new one
 

III.        Research Methods

IV.        Sources of Bias

A.    interpreting statistics
B.    imprecise concepts
C.    inappropriate research methods
D.    experimenter bias
E.    extraneous variables
        1.    cross sectional studies
        2.    longitudinal studies
        3.    mortality
        4.    pre-test/post-test