One is concerned with whether the IV is solely responsible for the response in the DV. The other is concerned with the generalizability of your study results to populations or situations outside the experiment
What is the difference between internal validity and external validity?
100
An event or behaviour that can take at least two values
What is a variable?
100
We were aware that people's level of education will impact the response of the DV, so we'll use this type of assignment.
What is nonrandom assignment?
100
This is the shorthand notation for an experimental design that contains one IV with three levels, one IV with two levels, and another IV with three levels.
What is a 3x2x3 design?
100
This statistics summarizes numbers and this statistics determines whether the results are significant
What are descriptive statistics and inferential statistics?
200
The following is an example of a threat to internal validity:
"Whoops! The computer that was used by participants to complete their survey just crashed"
What is instrumentation?
200
This clear communication allows others to know how a variable was measured and to be able to replicate your research based on your definitions
What is an operational definition?
200
You conduct this test if your ANOVA is found statistically significant
What is a post hoc test?
200
The disadvantages include inefficiency, time-consuming, and the inability to assess interactions between your independent variables
What are the disadvantages to running multiple single IV designs instead of factorial designs?
200
Having good experimental control leads to this.
What is an internally valid experiment?
300
interaction of testing & treatment, multiple treatment interference
What are threats to external validity?
300
physiological, experience, stimulus
What are the 3 types of independent variables?
300
I can use ANOVA to analyze my data for this type of research design.
What is multiple-groups designs (and 2-group designs)?
300
It is the joint, concurrent effect of more than 1 independent variable on the dependent variable
What is an interaction?
300
In your SPSS output, your F-ratio has a probability of .000, you would report p as _______
This variable causes variability within groups to increase
What is a nuisance variable?
400
A belief that explanations of a phenomena or events should remain simple until the simple explanation is no longer valid
What is the principle of parsimony?
400
The effect of combining 2 or more things together, resulting in a different effect than when presented separately.
What is synergistic effects?
400
This allows participants to have an equal chance of being put to any groups.
What is random assignment?
500
This is one of the threats to external validity. This is caused by the conditions of an experimental setting b/c the artificial conditions that are used for studies do not exist in the real world.
What is reactive arrangement?
500
Each treatment must: 1) Be presented to each participant an equal # of times; 2) Occur an equal # of times at each testing session; & 3) Precede & follow each of the other treatments an equal # of times.
What is within-group counterbalancing?
500
This is a plan for selecting participants, assigning participants to levels/conditions, controlling extraneous variables, and gathering data
What is an experimental design?
500
comparing different amounts of IV, using measured IVs, using more than 1 IV
What are variations of factorial designs?
500
This design is like a true experimental design, but the researcher cannot randomly assign participants to groups