class 2 Flashcards
The entity that researchers want to describe and analyze is known as a ______.
a. unit of analysis
b. multidimensional characteristic
c. concept
d. operational definition
a
A recent public opinion poll found that 47 percent of respondents approve of the job the
president is doing. Subsequent polls found approval ratings of 46 percent, 48 percent, and 49
percent. Based upon this we can say the questions in the poll are what kind of measurement of
presidential job approval?
a. valid
b. reliable
c. fair
d. random
b
A measure that records the true value of an intended characteristic is said to be?
a. reliable
b. complete
c. complex
d. valid
d
Every variable has one name and at least ______ value(s).
a. one
b. two
c. three
d. four
b
True/False. In a study of the presidency, presidential speeches are an example of a unit of analysis.
true
True/False. A measure is said to be reliable when it accurately measures the concept being studied.
false
True/False. An operational definition describes the instrument to be used in measuring a concept and putting the conceptual definition to work.
true
Marital status, political party affiliation, and hair colour all are examples of what level of
measurement?
a. Nominal
b. Ordinal
c. Interval
d. They are measured on different types of measurement level
a
Which of the following best describes a ratio scale of measurement?
a. Values have order and differences.
b. Values have differences and a true zero.
c. Values are equidistant and have a true zero.
d. Values are equidistant and do not have a true zero.
c
True or false: Qualitative variables can be continuous or discrete.
false, only discrete
True or false: A nominal variable can be numeric.
true
True or false: A score on a multiple-choice exam (0–100 points) is a ratio scale measurement.
true
True or false: Continuous data are always distributed in discrete units.
false
True or false: Categorical data are one example of discrete data.
true
Rank the four scales of measurement in order from least informative to most informative.
a. ordinal, nominal, interval, ratio
b. nominal, ordinal, interval, ratio
c. nominal, ordinal, ratio, interval
d. ordinal, nominal, ratio, interval
b
Recording whom students study with describes ______ types of data; whereas recording the
number of hours spent studying per week describes ______ types of data.
a. qualitative; quantitative
b. continuous; discrete
c. quantitative; qualitative
d. discrete; continuous
a
Each of the following is an example of quantitative data, except ______.
a. weight in ounces
b. income in dollars
c. political affiliation
d. age in years
c
Recording the number of dreams recalled is an example of ______ data; whereas recording the time (in minutes) spent in a dream stage of sleep is an example of ______ data.
a. qualitative; quantitative
b. continuous; discrete
c. quantitative; qualitative
d. discrete; continuous
d
_____ are measured in whole units or categories.
a. Continuous data
b. Discrete data
c. Quantitative data
d. Open-ended data
b
A health practitioner measures the heart rate (in number of beats per minute) of patients under
low, moderate, and high stress levels. Heart rate can be best described as ______.
a. continuous
b. discrete
c. qualitative
d. nominal
b
