In the last 100 years, average life expectancy has risen from 57 to 67 years old

Early development of design reproduction, or a marked sequential pattern in the way shapes are copied, results in children having a tendency to

A. reverse the letter g more frequently than q B. reverse the letter q more frequently than g C. reverse the letter d more frequently than b D. reverse the letter b more frequently than d

Carla has just run a series of experiments involving college students as participants. The experiments were all conducted in a controlled environment on campus

Carla is now interested in whether her findings would apply to both younger and older people in neighborhoods and towns outside of the college. Carla is concerned with ________. a) random assignment b) dependent variables c) external validity d) experimental methods