MMC 3420 EXAM 2 QUESTIONS AND
ANSWERS 100% CORRECT
Categorical Data - ANSWER-Data that places observations into classes. Reported as
counts, percentages, and proportions
(nominal, ordinal)
continuous data - ANSWER-Data that places observations on a continuum. Reported as
averages, ranges, standard deviations (interval & ratio)
terms for discussion inferential statistics - ANSWER-nonparametric, parametric
T - ANSWER-T/F: In order to infer and be confident, we can transfer what we calculated
from our sample to our population
descriptive statistics - ANSWER-simple counts of data includin, frequencies,
percentages, proportions, cannot generalize data to a population
contingency cross-tabs table - ANSWER-a table that shows how one variable changes
with another e.g. TV viewing by gender
nominal - ANSWER-categorical data, at least 2 mutually exclusive categories, no
overlap good for independent variables ex: male or female?
ordinal - ANSWER-places data into an order, • values have a greater than/ lesser than
relationship ex: age and income, team rank
interval - ANSWER-uses a scale to place data, differences between points are
meaningful, but there is no "real" zero, assumes equal distance between variables ex:
likert scales, semantic differentials
ratio - ANSWER-has a true zero point and can be expressed in the negative, not an
equal distance of data, Ratios of numbers reflect ratios of magnitude, ex: reaction times,
height, bank account balance
validity - ANSWER-a tests measures what it is supposed to measure
reliability - ANSWER-the test performs consistently
content analysis - ANSWER-content, expert, construct, convergent, divergent,
predictive
ANSWERS 100% CORRECT
Categorical Data - ANSWER-Data that places observations into classes. Reported as
counts, percentages, and proportions
(nominal, ordinal)
continuous data - ANSWER-Data that places observations on a continuum. Reported as
averages, ranges, standard deviations (interval & ratio)
terms for discussion inferential statistics - ANSWER-nonparametric, parametric
T - ANSWER-T/F: In order to infer and be confident, we can transfer what we calculated
from our sample to our population
descriptive statistics - ANSWER-simple counts of data includin, frequencies,
percentages, proportions, cannot generalize data to a population
contingency cross-tabs table - ANSWER-a table that shows how one variable changes
with another e.g. TV viewing by gender
nominal - ANSWER-categorical data, at least 2 mutually exclusive categories, no
overlap good for independent variables ex: male or female?
ordinal - ANSWER-places data into an order, • values have a greater than/ lesser than
relationship ex: age and income, team rank
interval - ANSWER-uses a scale to place data, differences between points are
meaningful, but there is no "real" zero, assumes equal distance between variables ex:
likert scales, semantic differentials
ratio - ANSWER-has a true zero point and can be expressed in the negative, not an
equal distance of data, Ratios of numbers reflect ratios of magnitude, ex: reaction times,
height, bank account balance
validity - ANSWER-a tests measures what it is supposed to measure
reliability - ANSWER-the test performs consistently
content analysis - ANSWER-content, expert, construct, convergent, divergent,
predictive
