Which of the following groups are underrepresented in the Texas legislature?

When we cannot measure important hypothetical constructs directly, we rely on

a. operational definitions. b. manipulations. c. independent variables. d. qualitative variables.

The multiple nuclei theory

a. gives strong support to the Chicago School of Urban Ecology. b. suggests that, with time, manufacturing industries tend to concentrate in a specific area. c. argues that as cities grow, they diversify and develop distinct sectors of activities. d. help to predict the specific land use pattern of cities.