HTH 408 Final Exam-Baller Newest 2026 Complete All
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Descriptive analysis - Answer-describes data, how it looks,
what the center point is, the spread or distribution.
Univariate analysis - Answer-the analysis of only one
variable and can be further dissected into descriptive
analysis and inferential analysis.
What are some common graphical representations of
data? - Answer-Bar graphs
Histograms
Scatterplots
Line graphs
Pie chart
A graph can depict ____ & ____ - Answer-Relationships,
patterns
What are the measures of central tendency? Give their
definitions. - Answer-Mean: average (sensitive to outliers)
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Median: middle point of the distribution
Mode: most frequent number
What is an interquartile range? - Answer-A measurement
of the middle 50% of scores in the variable
Variance - Answer-spread of distribution from the mean.
_____ is the square root of the variance - Answer-
standard deviation
Correlation - Answer-the extent to which two variables
approximate a linear relationship.
Parametric data - Answer-interval or ratio data
Nonparametric data - Answer-nominal and ordinal data
Rejecting the null hypothesis at the 0.05 level suggests
there is - Answer-less than a 5% probability the differences
are caused by error or chance
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A type II error is also called a ____ error. - Answer-beta
Post-hoc test - Answer-a series of t-tests comparing each
possible combination to see which relationship pairs are
significant.
What does within-groups variance represent? - Answer-
The sampling error in a distribution
Regression is concerned with _____, _____, and
sometimes _____ in studies. - Answer-directionality,
prediction, causation
Multiple linear regression - Answer-assesses the linear
relationship between two or more continuous IV and a
single continuous DV
What assumptions are made when using parametric
statistics? - Answer-Population scores are normally
distributed about the mean
Population variances of the groups are approximately
equa