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BESC 3010 test two complete questions and solutions
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BESC 3010 test two complete questions and solutions
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BESC 3010 test two complete questionsand solutions
What is meant by a "manipulation" in the context of experimental research?
Any variable that is controlled by the researcher
An unethical practice
The creation of emotions against the participant's will
The physical control of a respondent's body CORRECT ANSWERS Any variable that is
controlled by the researcher
The number of small businesses opened in a county each year is an example of which
level of measurement?
nominal
interval
ordinal
ratio CORRECT ANSWERS ratio
The lowest level of measurement (i.e., the one that contains the least information) is the
______ level of measurement.
interval
ratio
ordinal
nominal CORRECT ANSWERS nominal
If a person's employment is coded as Unemployed = 0 or Employed = 1, then that
variable is at the ______ level of measurement.
ordinal
nominal
interval
ratio CORRECT ANSWERS nominal
A histogram is appropriate when the data are...
nominal or ordinal.
nominal, interval, or ratio.
interval or ratio.
ordinal. CORRECT ANSWERS interval or ratio.
A bar chart would work best for which of the following measurement scales?
Categorical levels
Ordinal or ratio
Nominal or interval
Quantitative levels CORRECT ANSWERS Categorical levels
A bell curve (i.e., a normal distribution) is...
, leptokurtic.
mesokurtic.
uniform.
platykurtic. CORRECT ANSWERS mesokurtic
Which measure of central tendency works best of negatively skewed distributions?
Median
Mode
Mean
No measure is appropriate CORRECT ANSWERS Median
What is the lowest level of measurement needed to calculate the mode?
Interval
Any level but the distribution must be symmetrical
Nominal
Any level that doesn't have outliers CORRECT ANSWERS Nominal
In a negatively skewed distribution, which measure will generally have the highest
value?
Mean
Mode
Median
All are the same CORRECT ANSWERS Mode
In a positively skewed distribution, which measure will generally have the highest value?
Mode
All are the same
Mean
Median CORRECT ANSWERS Mean
What is the lowest level of measurement needed to calculate the mean?
Interval
Ordinal
Ratio
Any level but the distribution must be symmetrical CORRECT ANSWERS Interval
Which measure requires a degrees of freedom calculation?
Population variance
Population range
Sample mean
Sample standard deviation CORRECT ANSWERS Sample standard deviation
What is the sample standard deviation for this data set?
4, 1, 9, 1, 5
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