4. Scientists assess the truth of statements about cause by considering threats to
________________.
5. A(n) _______________ is a structure that is intended to represent or model something
about the world.
6. Theories describe _______________ that might logically be expected among variables.
7. _______________ reasoning moves from the specific to the general, from a set of
particular observations to the discovery of a pattern that represents some degree of order
among the varied events under examination.
8. When someone tries to come to conclusions about an individual based on group-level
data, the _______________ is being committed.
9. Types of longitudinal studies include trend, panel, and _______________ studies.
10. In _______________ studies, data are gathered at a single point in time.
ESSAY
1. Define cohort, panel and cross-sectional study. Give an example of each.
2. Explain in detail using an example of the way in which the ecological fallacy is the result
of errors with units of analysis.