About ______ of those over age 65 have completely lost their ability to smell

Suppose, in an investigation, the frequency of positive hits was twice that of

misses. The correlation coefficient would be (a) +1.0 (b) 0 (c) -1.0 (d) not enough information is given to answer the question

Which of the following is characteristic of formal operational thought?

a. animism c. deductive reasoning b. centration d. reasoning that is limited to the tangible and real