3.1 Experimental Design Part 2

Question 1

What is psychometrics?

Answer 1

study of how to measure psychological variables through testing

Question 2

What is response bias?

Answer 2

tendency for respondents to not have perfect insight into their state and provide inaccurate responses

Question 3

What is a between-subjects design?

Answer 3

comparisons are made between subjects from one group to another

Question 4

What is within-subject design?

Answer 4

compare the same group at different time points

Question 5

What is a type 1 error?

Answer 5

false positive

Question 6

What is a type 2 error?

Answer 6

false negative

Question 7

What is a null hypothesis?

Answer 7

assume there is no causal relationship between the variable and any effect they measure it due to chance

Question 8

What is an experimental hypothesis?

Answer 8

proposition that variations in the independent variable cause changes in the dependent variable

Question 9

How can researchers reject the null hypothesis?

Answer 9

by measuring a significant difference

Question 10

What is significant difference?

Answer 10

measured difference between two groups that is large enough that it is probably not due to change

Question 11

What is a p-value?

Answer 11

number from 0 to 1 that represents the probability that a difference is observed in an experiment is due to chance