Sampling
The difference in scores that occurs when we test a sample drawn out of the population.
What is sampling error?
When a question on a survey is actually two questions in one.
What is a double-barreled question?
The variable that is used to predict the outcome variable.
What is the predictor variable?
A design in which participants receive all levels of the independent variable.
What is a within subjects design?
The minimum number of independent variables in a factorial design.
What is 2?
A sampling technique that involves choosing individuals from the population at random where each individual has an equal chance of being selected?
What is a simple random sample?
The branch of Psychology that deals with establishing that the results of a survey are valid and reliable.
What is psychometrics?
When a variable that is not of interest in a study may explain the results of a study.
What is the 3rd variable problem?
A technique that can be used to control for order effects.
What is counterbalancing?
When the effect of one independent variable depends on the levels of another independent variable.
What is an interaction?
A sampling techniques that involves choosing individuals from the population such that individuals are chosen from pre-existing groups.
What is a cluster sample?
A closed-ended response scale that has numbers that range from not very to very much.
What is a Likert scale?
The number of groups from which the measures in a correlational study are collected.
What is one?
A technique that can be used to control for group differences in a between subjects design.
What is randomization?
One of the two advantages of a factorial design.
What is efficiency or the examination of interactions?
The sampling techniques that is likely to create the smallest amount of sampling error.
What is simple random sampling?
A strong, positive relationship between scores on a new survey and scores on a previously validated survey on the same topic.
What is criterion related validity?
Correlational studies are not well suited to answering these types of questions.
What is causal?
A between subjects design that involves sets of participants paired on a specific characteristic with each member of the set randomly assigned to a different level of the independent variable.
What is a matched design?
The isolated effect of each independent variable.
What is a main effect?
The sampling techniques that involves choosing individuals from the population such that individuals from the population who volunteer are selected.
What is a haphazard/volunteer sample?
A measure of internal consistency that takes the average correlation between scores on all pairs of items on a survey.
What is cronbach's alpha?
When you cannot determine which variable came first.
What is the problem of directionality?
The 2 things required in order to have a proper experiment.
What are manipulation and control?
The name of the statistical procedure used to test a factorial.
What is an ANOVA?