Sampling Strategies & Their Implications Definitions

these are a range of revision cards for research methods and it outlines the definitions involving sampling strategies that are required for the exam.

HideShow resource information

define target population

total collection of ppl who share given set of characteristics.

eg all students registered for As Psychology exams in 2010 in the UK

1 of 8

Representative Sample

a selection of individuals from the target pop, which shares all the main characteristics of the pop despite its smaller size

2 of 8

Sampling Error

An indication of the extent to which a sample differs from the target pop.

3 of 8

Opportunity Sample

a way of selecting a grp of p's because they are available & fit for the criteria needed for them to take part in a rsh study.

4 of 8

Volunteer Sample

a group of p's who are invited & agree to take part in a rsh study (self selected)

5 of 8

Sample Bias

This can occur if a certain kind of p' is persistently recruited for rsh at the expense of others.

Therefore other subgrps are not adequately represented in the body of psycho knowledge.

 

 

 

 

6 of 8

Quota Sampling

a target pop is divided into subgrps & op samples are taken frome each of them in the same proportions that exist in the target pop.

7 of 8

Stratified Random Sampling

a target pop is divided into subgrps & random samples are taken from each of them in the same proportions that exist in the target population.

8 of 8

Comments

No comments have yet been made

Similar Psychology resources:

See all Psychology resources »See all Research methods and techniques resources »