Random, stratified, volunteer, and opportunity sampling techniques. Flashcards

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

A sampling frame is a list of all individuals in the population from which the sample is ____ and it is crucial for ____ sampling.

A

drawn,random

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

The importance of a sampling frame lies in its ability to minimize ____ and ensure all potential ____ are included.

A

bias,participants

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

One drawback of random sampling is that it can be ____-intensive, especially with large or ____ populations.

A

resource,geographically dispersed

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

Systematic sampling involves selecting every ____ individual from a list, making it a variation of ____ sampling.

A

nth,random

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

Stratified sampling differs from quota sampling in that it selects participants ____ from strata (subgroups), while quota sampling selects them ____-randomly.

A

randomly,non

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Stratified sampling (choosing from distinct subgroups) is most useful when the population has distinct ____ and their representation in the sample is ____.

A

subgroups,crucial

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

Comparative analysis between different subgroups within the population might benefit from ____ sampling due to its focus on ____ representation.

A

stratified,subgroup

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

Volunteer sampling is particularly useful when researchers study specific ____ or traits that require ____ participants.

A

behaviors,motivated

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

Volunteer sampling can introduce bias by attracting participants with specific traits, such as high ____ or interest in the ____ being studied.

A

motivation,topic

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Self-selection bias refers to a distortion in research results caused by the ____ of who chooses to ____ in the study.

A

non-randomness,participate

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

One ethical concern in using volunteer sampling is that it may lead to ____ among participants, affecting the ____ of the research.

A

bias,validity

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

In research, ensuring volunteers are not coerced and fully understand their rights is essential for ____ and ____.

A

ethical standards, participant rights

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Opportunity sampling saves time by selecting participants who are ____ and ____ to participate.

A

readily available, willing

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

An example of opportunity sampling in research is a psychologist selecting ____ in their ____ for a study.

A

students, class

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Ecological (relating to living organisms and their surroundings) validity refers to the extent to which findings ____ to ____ settings; it can be reduced if the sample is not _____.

A

generalize, real-world, representative

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

To mitigate bias in opportunity sampling, researchers should ensure a ____ pool of participants is available to select from.

A

diverse

17
Q

The main goal of any sampling technique is to obtain a sample that is ____ of the ____ population.

A

representative, target

18
Q

Generalizability is important in research because it allows findings to apply to a ____ population beyond the ____.

A

wider, sample

19
Q

Population size influences sampling decisions; larger populations may require more ____ and ____ sampling techniques.

A

structured, systematic

20
Q

Milgram (1963) used ____ sampling, which was effective because it allowed access to participants interested in ____ to research.

A

volunteer, contributing

21
Q

A famous study that relied on opportunity sampling is ____ (1971) ____ Prison Experiment.

A

Zimbardo’s, Stanford

22
Q

External validity refers to how well results can be ____; it can be affected by the ____ method.

A

generalized, sampling

23
Q

Sampling bias is a systematic error that leads to a ____ sample, which does not accurately reflect the ____ of the population.

A

non-representative, characteristics

24
Q

To avoid sampling bias, researchers should use ____ or ____ sampling techniques whenever feasible.

A

random, stratified (strata: subgroups)

25
Q

A population includes all individuals of interest, while a ____ is a ____ of that population.

A

sample, subset

26
Q

Representativeness in sampling refers to how accurately the sample reflects the ____ of the ____ being studied.

A

characteristics, population

27
Q

Researchers might use non-probability sampling methods like volunteer sampling due to ____ constraints or specific ____ requirements.

A

time, study

28
Q

The main trade-off in using random sampling versus opportunity sampling is that random sampling increases ____ but is less ____ than opportunity sampling.

A

representativeness, convenient

29
Q

Volunteer sampling can produce a representative sample only under rare circumstances where volunteers mirror the population’s ____.

A

diversity

30
Q

Stratified sampling enhances research reliability by ensuring that key ____ are included proportionally in the ____.

A

subgroups, sample

31
Q

Understanding the limitations of a sampling technique is important to accurately interpret research findings and acknowledge potential ____ in the results.

A

biases