Final Exam Flashcards
Are stats black and white?
No!
How do you know if something is categorical? Continuous?
Categorical - Words
Continuous - Numbers
What are inferential, population, or parametric stats?
T-Test, Correlation, and Anova
What are descriptive statistics, sample, or nonparametric?
Central tendencies, frequencies, z-scores, chi-square
True or False. Standard deviation calculated in the same units as your variable.
True!
True or False. Correlation between two variables equals causation.
FALSE.
What is it called when gathering data is done by asking participants to name additional individuals who could qualify for the study?
Snowball
Clarice is interested in young Hispanic mothers’ infant feeding practices. She uses a focus group method to discuss infant feeding practices with 32 young Hispanic mothers (8 at a time). What is the pop and sample?
Population is young Hispanic mothers, sample is the 32 young Hispanic mothers.
For sampling error what must you do
The number above and below such as ____ to ____ is the sample error
What is X Bar?
Mean
What is S squared?
Variance
What is S?
Standard Deviation
What is Z?
Z-Score
Which of these four is non parametric? T-Test, Chi-Square, Correlation, ANOVA?
Chi-Square
For which do you need to know the variable? T-Test, Chi-Square, Correlation, ANOVA?
Correlation and ANOVA
List out the types of IV’s and DV’s for the following…. T-Test, Chi-Square, Correlation, ANOVA.
T-Test IV Cat DV CONT
Chi-Square IV CAT DV CAT
Correlation IV CONT DV CONT
ANOVA IV CAT (3 or more) DV CONT
How do you tell if something is skewed? Positively or negatively?
Depending where the tail goes, if to the left its negative, to the right is positive.
What must it be for good reliability?
Above .8`
What is the level to test for significance?
Below .05
What is the null hypothesis?
No significance
What is h1?
Research hypothesis
What is a type 1 error?
When you reject the null hypothesis when you shouldve accepted it
What is a type 2 error?
When you say there is no sig difference when there is
