Statistics Question
What kinds of variables can the chi‐Square goodness‐of‐fit be used for?
Categories = nominal
The p‐value can take on any value between ... .
-1 & 1
P value
0-1
B0 and B1
B0 = intersect of Y axis B1 =
The Scheffe post‐hoc test is used when ...
Because post hoc tests are run to confirm where the differences occurred between groups, they should only be run when you have a shown an overall statistically significant difference in group means Anova test
What is the mean of the following dataset?
Summ / n
Bivariate
two variables Causality Pearson r Cross tabs One sample t test Two sample test CHI square
Multivariate
involving more than two variables Anova Regression
Independent sample t-test only 2 groups
True
Standard deviation can not be used for ordinal variables
True
DV=Health IV=Income R^2=0,11
11% of the variance health DV can be explained by Income IV
H1 (><)
Directional and one tailed
Which statement best describes the interaction effect?
Effect of a IV on another IV
In regression analysis, what is the test for the whole model?
F-Test
continious
Measured along a continuum (height, square meter, 3.22)
Discrete
Measured in whole units (children, 100, country)
Which measure of variability cannot be used for which levels of measurement?
Mode = nominal, ordinal & interval/ratio Median = ordinal & interval/ratio Mean= interval/ratio Range= ordinal & interval/ratio Variance = interval/ratio Standard Deviation = interval/ratio
A researcher studies people's religious affiliations. What level of measurement is this variable?
Nominal
chi-square goodness of fit test level of measurement
Nominal
H1 not
Non-directional and two tailed
Univariate
One-variable data. Range Variance Standard deviation
Level of measurement in mode
Ordinal
We can reject the H0 of a given test of significance when ...
P value < alpha
In Anova, if the F value is large...
Reject H0
confounding variable
a factor other than the independent variable that might produce an effect in an experiment
