1
Q
Why is it not usually possible to test everyone in a target population?
A
Time consuming
Expensive
Geography challenging
2
Q
What is sample error?
A
Sample mean - population mean
3
Q
What lowers sampling error?
A
Taking an average across multiple samples
4
Q
What is an experimental hypothesis?
A
Suggests the IV affects the DV
5
Q
What is the sampling distribution of the mean?
A
Normal distribution
6
Q
What do inferential statistics do?
A
Work out the probability that you would have your results if the null hypothesis is true
7
Q
What is a type I error?
A
False positive
8
Q
What is a type II error?
A
False negative
9
Q
What is the threshold for p value in psychology?
A
0.5 or 5%
10
Q
What is the alpha level?
A
The threshold for p value (0.5)
