This process minimizes the influence of extraneous factors in an experiment.
What is elimination.
100
A type of sampling researchers use when they do not know or have access to the entire population, so they sample people who represent that population in some way. (broader term)
What is non-probability sampling.
100
"On a scale of 1 to 5, rate how much you love ice cream and pizza." Why is this not a good survey item?
It's double-barreled!
100
This is achieved when researchers are consistent in their use of data collection procedures and when participants react consistently to them.
What is reliability.
100
This is achieved when the measurement does what it is intended to do; related to truthfulness or accuracy in measurement.
What is validity.
200
An experiment with a 2x2x4 factorial design has ______ factors and ______ conditions
3 factors and 16 conditions.
200
A form of non-probability sampling where the researcher hand-picks the cases to be included in the sample.
What is known group/purposive sampling.
200
Study design that surveys the same people with the same survey at different points in time.
What is cohort design.
200
Ashley has tried many different frozen pizzas. Jenny wants to know if this new brand of frozen pizza is good, so she gives it to Ashley to try.
What is expert jury validity.
200
Ashley wants to know if she’s created a good jeopardy quiz. She gives her first section one version of the jeopardy exam and her second section a different version of the jeopardy quiz and then compares the scores.
What is alternate forms reliability.
300
Threat to validity that results from participants changing over the course of the study.
What is maturation.
300
A form of random sampling in which the population is divided according to subgroups of interest, then elements are randomly selected from each subgroup with respect to the proportion as a whole.
What is stratified random sampling.
300
Variable that generates a score at one and only one experimental condition
What is a between-subjects variable.
300
Jenny looks at her stigma scale and says "That looks like it measures stigma."
What is face validity.
300
Jenny makes a new scale measuring shyness. She asks Ashley to answer the questions, then sees if Ashley’s answer for the even numbered questions match her answers on the odd numbered questions.
What is split half reliability.
400
O X O
What is one-group pre-test post-test.
400
Degree to which the sample generalizes to a larger population
What is representative sample.
400
Measuring a secondary variable to determine if the experimental variable actually operated as planned in the study.
What is a manipulation test.
400
Adding items to a scale improves what statistic?
Cronbach's alpha.
400
What is a common level for Cronbach's alpha in Communication research?
.95, .99
500
The effects of the two independent variables on a dependent variable are in different directions, such that graphically their lines cross.
What is a disordinal interaction.
500
Term for when a sample is collected in such a way that some members of the intended population are less likely to be included than others.
What is sampling bias.
500
An “O” signifies _______ and an “X” signifies ______.
What is Dependent/Independent.
500
Variance true/Variance total
What is reliability.
500
You do work to say that your measure of a preference for online interaction is similar to affection towards the Internet and different from face-to-face social competence.