After measuring a set of individuals, a researcher finds that Bob's score is three times greater
than Jane's score. These measurements must come from a(n) ________ scale. - Answers ratio
Psychologists are able to study variables such as hunger, motivation, and self-esteem because
these variables can be measured by - Answers operational definitions.
What additional information is obtained by measuring on an interval scale compared to an
ordinal scale? - Answers The size of the differences.
Research results indicate that the more time individuals spend watching educational television
programs as preschool children, the higher their high school grades will be. This is an example
of a _________ relationship between variables. - Answers positive
A disadvantage of using an operational definition is that the operational definition may -
Answers not be an accurate reflection of the construct.
leave out important components of the construct.
include extra components that are not part of the construct.
What additional information is obtained by measuring on an ordinal scale compared to a
nominal scale? - Answers The direction of the differences
A research study reports that participants who scored high on a new test measuring self-esteem
made eye contact during an interview whereas participants who scored low on the test avoided
eye contact. Assuming that more eye contact is associated with higher self-esteem, this study is
a demonstration of ________ validity. - Answers predictive
Participants taking on the negativistic subject role are participants who - Answers try to act so
that their data are in contrast to the hypothesis.
Which type of validity requires multiple research studies, usually conducted over a long period
of time? - Answers construct
After measuring two individuals, a researcher can say that Tom's score is 4 points higher than
Bill's score. The measurements must come from a(n) _______ scale. - Answers interval
A(n) ________ measure produces similar results when the same individuals are measured
under identical conditions. - Answers reliable
Measurement that includes a large error component will have very low - Answers reliability