Variables
"yes" or "no" is an example of this.
What is an example of a dichotomous variable?
A test that looks at the association between an IV that is dichotomous/ordinal/categorical and a DV that is dichotomous/ordinal/categorical.
What is a Chi-Square test of association?
This is an educated guess about what your data will tell you, comprised of two mutually exclusive and exhaustive statements.
What is a hypothesis?
A study design that asks participants to complete a questionnaire just one time, without an experiment.
What is a survey/ cross-sectional design?
The acceptable likelihood that the null hypothesis is true, even though you accepted the alternative hypothesis.
What .05?
Latino(a), African American/ Black, Afro-Caribbean, Asian, Pacific Islander, White are attributes/levels of this kind of variable.
What is an example of a categorical variable?
A test that looks at the relationship between two variables and gives the strength and direction of such relationship.
What is a correlation?
This is the hypothesis of no-difference, or no-relationship.
What is the null hypothesis?
A research design that randomly assigns participants into a treatment and a control group and measures the dependent variable at pretest and posttest.
What is an experimental design?
This is the type of error where you reject the null hypothesis, but it was actually true. You should not have rejected it.
What is a Type I error?
Depression scale, age, income
What are examples of interval variables?
A test that describes the difference between two groups, and indicates whether that difference is statistically significant.
What is a t-test?
This hypothesis predicts the direction of the relationship between two variables or which comparison group will be different.
What is a directional hypothesis?
A research design that follows subjects over an extended period of time to determine how various variable change over time.
What is a longitudinal study design?
This is the strength your study has to detect a type I error.
What is power?
Suicidality, as influenced by bullying at school.
What is an example of a dependent variable?
A test that looks at the difference between 3 or more groups and indicates whether those differences are statistically significant is a posthoc analysis.
What is an ANOVA (Analysis of Variance)?
This is the hypothesis you are actually interested in, based on theory, literature, and previous findings.
What is the alternative hypothesis?
A research study where most of the elements of an experiment are present, but at least one of the following is not true; random assignment to treatment and control, pre/post test, and treatment and control group.
What is a quasi-experimental design?
Any value that is .05 or less.
What is statistical significance?
This is the variable that influences change in another variable.
What is an independent variable?
A test that is used to determine whether there is a difference between pre-test and post-test scores.
What is a pair-samples t-test?
What is an omnibus hypothesis?
This type of design collects lots of research studies from different authors and places, analyzes them all together, comes up with a universal statistic to describe the relationship between variables, and is based on multiple studies.
What is a meta-analysis?
This is the kind of error where you have a false negative. Meaning there is a relationship between your variables, or there is a difference between two groups, but your study wasn't strong enough to detect it.
What is type II error?