number of times using the exact same procedure, and finds the means obtained vary
from sample to sample. This is an example of
a. systematic error.
b. sampling error.
c. nonsampling error.
d. noncoverage error.
e. response error.
An advertiser has developed a television advertisement designed to create a “feeling of
warmth” on the part of viewers since she believes that this will lead to positive attitudes
toward the product, and ultimately to increased sales. In order to determine if the ad
does produce the desired feelings in viewers, she has devised a three’‘item scale to
measure the warmth construct. After viewing the commercial (independently), Joe had
a score of 15 on the warmth scale and Perry had a score of 9.Which of the following
statements is FALSE?
a. The scale used is likely to be at least as reliable as a ten’‘item scale since a ten’‘item
scale is more likely to inadvertently tap into constructs other than warmth.
b. If Joe and Perry had viewed the commercial and listened to instruction together at the
same time, and then had completed the scales, at least one source of variation might
have been greatly reduced.
c. It is possible that Perry’s lower score might have resulted from accidentally checking
the wrong response.
d. Some relatively stable characteristic of an individual, such as Perry’s unwillingness to
share the actual intensity of his feelings, might have contributed to the difference in the
two scores.
e. Joe did not necessarily have “warmer” feelings toward the ad than Perry.