HTH 408 PART 2 EXAM QUESTIONS
AND ANSWERS ALL CORRECT
What are post HOC tests? - Answer- -series of t-tests, comparing each possible
combination to see which relationship pairs are significant
What is within groups variance? - Answer- the sum of the variances of each of the
groups. Represents sampling error in distribution
What is between-groups variance? - Answer- the variation of the means of the groups.
Shows the influence of the experimental variable or treatment
What is total group variance? - Answer- all the variance together
What is simple linear regression? - Answer- Refers to a study in which there is only one
IV and one DV (both are continuous), and the relationship can be illustrated in a straight
line
What is multiple linear regression? - Answer- Assesses the linear relationship between
two or more continuous IV and a single continuous DV
What should the results section look like? - Answer- - complete report findings
- start by describing sample
- then explain findings -> tell the story
What does the demographic section look like? - Answer- - Begin the results section with
sample demographics
- Be descriptive, detailed, and precise
- Don't ask your reader to "do additional work" or math
- Demographic info provides context for the findings
What does the findings section look like? - Answer- - Describe the findings for key
variables
- First present info on the participants, then present findings related to the relationships
between two or more variables
What does descriptive analysis measure? - Answer- -frequency
- central tendency
-dispersion
-position
, What is descriptive analysis? - Answer- first impression of a variable, understanding
details of variables, and become familiar with sample
What is inferential analysis? - Answer- provides a deeper understanding of variable,
because it draws conclusions from sample to population
What can graphical presentation of data show? - Answer- relationships and patterns
What are the common graphs that we use in 408? - Answer- - bar graphs
-histograms
what type of variable does bar graphs measure? - Answer- categorical
What type of variable does histograms measure? - Answer- continuous
What are the measures of central tendency? - Answer- mean, median, mode
What does mean measure? - Answer- average
what does median measure? - Answer- middle points in a distribution
what does mode measure? - Answer- most frequent number(s) (preferred when outliers
exist in data)
what is one, two, and three or more modes? - Answer- unimodal, bimodal, and
multimodal
what is heterogeneous? - Answer- when numbers in a data set deviate from the center
value, the data set has a lot of variability
what is homogenous? - Answer- when numbers dont deviate from the center value, the
data set has low variability
what is range? - Answer- the difference between the maximum and minimum values in
a set of numbers
what are quartiles? - Answer- division of a distribution in quarters
whats interquartile range? - Answer- measurement of the middle 50% of the scores in
the variable
whats normal distribution? - Answer- - a perfect distribution; mean, median, mode and
median are equal to one another
-68% of the scores fall between one standard deviation
AND ANSWERS ALL CORRECT
What are post HOC tests? - Answer- -series of t-tests, comparing each possible
combination to see which relationship pairs are significant
What is within groups variance? - Answer- the sum of the variances of each of the
groups. Represents sampling error in distribution
What is between-groups variance? - Answer- the variation of the means of the groups.
Shows the influence of the experimental variable or treatment
What is total group variance? - Answer- all the variance together
What is simple linear regression? - Answer- Refers to a study in which there is only one
IV and one DV (both are continuous), and the relationship can be illustrated in a straight
line
What is multiple linear regression? - Answer- Assesses the linear relationship between
two or more continuous IV and a single continuous DV
What should the results section look like? - Answer- - complete report findings
- start by describing sample
- then explain findings -> tell the story
What does the demographic section look like? - Answer- - Begin the results section with
sample demographics
- Be descriptive, detailed, and precise
- Don't ask your reader to "do additional work" or math
- Demographic info provides context for the findings
What does the findings section look like? - Answer- - Describe the findings for key
variables
- First present info on the participants, then present findings related to the relationships
between two or more variables
What does descriptive analysis measure? - Answer- -frequency
- central tendency
-dispersion
-position
, What is descriptive analysis? - Answer- first impression of a variable, understanding
details of variables, and become familiar with sample
What is inferential analysis? - Answer- provides a deeper understanding of variable,
because it draws conclusions from sample to population
What can graphical presentation of data show? - Answer- relationships and patterns
What are the common graphs that we use in 408? - Answer- - bar graphs
-histograms
what type of variable does bar graphs measure? - Answer- categorical
What type of variable does histograms measure? - Answer- continuous
What are the measures of central tendency? - Answer- mean, median, mode
What does mean measure? - Answer- average
what does median measure? - Answer- middle points in a distribution
what does mode measure? - Answer- most frequent number(s) (preferred when outliers
exist in data)
what is one, two, and three or more modes? - Answer- unimodal, bimodal, and
multimodal
what is heterogeneous? - Answer- when numbers in a data set deviate from the center
value, the data set has a lot of variability
what is homogenous? - Answer- when numbers dont deviate from the center value, the
data set has low variability
what is range? - Answer- the difference between the maximum and minimum values in
a set of numbers
what are quartiles? - Answer- division of a distribution in quarters
whats interquartile range? - Answer- measurement of the middle 50% of the scores in
the variable
whats normal distribution? - Answer- - a perfect distribution; mean, median, mode and
median are equal to one another
-68% of the scores fall between one standard deviation
