Unit 3.2c Flashcards

You may prefer our related Brainscape-certified flashcards:
1
Q

When would you use a representative sample?

A

When it’s impractical to measure every individual in the population

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What should you do if there is a large amount of variety in a population?

A

Use a larger sample size

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What sampling allows members of a population an equal chance of being selected?

A

Random sampling

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

When is random sampling effective?

A

In large groups with uniform distribution

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What 2 advantages of random sampling?

A
  • straight forward
  • no bias
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What’s a disadvantage of random sampling?

A

Results in poor representation of the overall population

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What sampling means members of a population are selected at regular intervals?

A

Systematic sampling

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What’s an advantage of systematic sampling?

A

Provides a more representative sample of the overall population

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What 2 disadvantages of systematic sampling?

A
  • not all members have an equal selection chance
  • subject to selection bias
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What sampling divides the entire population into different sub groups, and then randomly select the final subjects proportionally from the different groups?

A

Stratified sampling

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What’s an advantage of stratified sampling?

A

Highly representative of the overall population

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What’s 2 disadvantages of stratified sampling?

A
  • requires researchers to know the proportions of each group prior to sampling
  • Must have up-to-date population data
How well did you know this?
1
Not at all
2
3
4
5
Perfectly