The semantic differential is a five-point rating scale with endpoints associated with bipolar labels that have semantic meaning

In Mexico City, only 55-60% of the population owns a telephone. The number drops to less than 50% in Guadalajara and Monterey, and 35% or lower in other cities. This will complicate the task of market researchers hoping to use a telephone survey to obtain a ________ of the Mexican population.

A) probability sample B) convenience sample C) secondary sample D) focus group sample E) quota sample

Which of the following is used to assess people's knowledge, beliefs, preferences, and satisfaction and to measure these magnitudes in the general population?

A) observational research B) descriptive research C) quantitative research D) survey research E) experimental research