Experimental Terms (Chapter 2)

Question 1

demand characteristics

Answer 1

any aspects of a study that communicate to the participants how the experimenter wants them to behave

Question 2

standard deviation

Answer 2

a measure of dispersion that tells us how much scores in a sample differ from the mean of a sample

Question 3

representative sample

Answer 3

want the sample to be representative of the population you are trying to study

Question 4

stratified sample

Answer 4

-making sure you have equal number of people in each group
-dividing them into sub groups with characteristics that they all have in common

Question 5

generalization

Answer 5

can the results be applied to the population of the experiment

Question 6

matching

Answer 6

participants matched in pairs before their assigned groups

Question 7

quasi-experiment

Answer 7

an experiment without random assignment

Question 8

scatterplot

Answer 8

what we use to show the relationship between two variables
-CORRELATION

Question 9

negative correlation

Answer 9

when one variable goes up and the other goes down

Question 10

positive correlation

Answer 10

when both variables go up or both goes down