Research suggests that Americans can identify a caller's ethnic background from the single word "hello" a maximum of 10% of the time

We organize stimuli on the basis of

a. schemas, figure and ground, proximity, similarity, and closure. b. salience, vividness, schemas, and expectancy. c. expectancy, familiarity, figure and ground, and proximity. d. vividness, closure, schemas, expectancy, and salience. e. salience, closure, figure and ground, similarity and proximity.

Explain the differences between abstract and concrete words. Why are public speakers usually advised to rely on the latter rather than on the former?

What will be an ideal response?