4. identify participants; 6. select a research design Flashcards
1
Q
whats a representative sample
A
sample represents the population; opposite = biased sample
2
Q
what happens when you increase sample size
A
standard error of the mean decreases; ie. sample results are more close to the population results
3
Q
define: statistical inference
A
generalising results of sample data to the population
4
Q
3 types of probability sampling?
A
systematic random sampling, stratified sampling, cluster sampling
5
Q
3 types of non probability sampling?
A
convenience sampling, quota sampling
6
Q
whats power
A
probability of detecting differences between exp and control group
7
Q
power in terms of bewteen, within subjects and matched subjects
A
within > matched > between
