Appropriate measure of central tendency

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Reference no: EM13751738

Question 1: A z score of 3.0 for a job applicant's score on an aptitude test indicates the applicant ______.

achieved a score 3 points higher than the average score
received a score 3 standard deviations above the mean score
had a score 3 percent higher than the average score
had a score plus or minus 3 points relative to the mean score

Question 2: The most appropriate measure of central tendency for nominal data is the ______.

Mean
Median
standard deviation
mode

Question 3: Content validation is most appropriate when ____________.

reliability is too high
sample size is large
criterion measures are readily available
sample size is too small for criterion validity calculation

Question 4: Which of the following levels of statistical significance would provide the most confidence that a sample correlation coefficient would not be interpreted as having a relationship in the population, when, in fact, there is no such relationship?

Question 5: The standard error of measurement allows ________.

calculation of confidence intervals for true scores
estimates of content validity
calculation of confidence intervals for actual scores
calculation of confidence intervals for error

Question 6: A scale in which objects are rank ordered according to how much of the attribute they possess, with equal space between objects.

Nominal
Ordinal
Interval
ratio

Question 7: The case for validity generalization across situations becomes stronger if ___.

correlation coefficients are negative
the standard error of measurement is large
differences in method and statistical differences are controlled
reliability is low

Question 8: When predictor and criterion scores have been obtained, the predictor can be considered valid if __________.

the correlation coefficient has the desired practical and statistical significance
the correlation coefficient has statistical significance alone
the correlation coefficient is insignificant
the correlation coefficient has practical significance alone

Question 9: Coefficient alpha assesses ____________.

reliability within a single time period
reliability between time periods
reliability between samples
test-retest reliability

Question 10: A scale in which objects are rank ordered according to how much of the attribute they possess.

Nominal
Ordinal
Interval
ratio

Question 11: The process of ensuring that all test takers receive the same tests in the same context, as a way to eliminate extraneous influences on test performance is called ____________________.

Standardization
Optimization
Rationalization
inflation

Question 12: Deficiency error would not indicate a failure to _________.

measure some portion of the attribute of interest
adequately define the attribute of interest
construct a proper measure of the totality of the attribute
calculate the standard deviation

Question 13: Reliability of measurement is defined as __________.

frequency of measurement
magnitude of measurement
accuracy of measurement
consistency of measurement

Question 14: A scale in which a given attribute is categorized, and numbers are assigned to the categories, but there is no order or level implied among the categories.

Nominal
Ordinal
Interval
ratio

Question 15: The larger the correlation coefficient, _________.Answer

the greater the practical significance
the smaller its practical significance
the larger its range
the smaller its statistical significance

Reference no: EM13751738

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