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 are tested both before and after a treatment.
What is a pretest-posttest design?
A developmental design where age is treated as a between subjects variable.
What is a cross-sectional design?
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 pretest posttest design that includes a control group
What is pretest posttest nonequivalent groups?
A developmental design that uses age as a within subjects variable
What is a longitudinal design?
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?
Events that occur during study to all or individual participants.
What is the history effect?
A developmental design that maximizes the advantages of both longitudinal and cross-sectional designs by including both methods.
What is a cohort sequential design?
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?
Account for fluctuations by measuring behavior multiple times before and after treatment.
What is a time series design?
A design that involves a small number of participants
What is a small n design?
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 effect of taking the test more than once.
What is the testing effect?
This kind of design uses a baseline and treatment measure and alternates between the 2.
What is an ABA or ABAB design?