GCSE psychology Sampling methods

Every person in the population has an equal chance of being selected -which sampling method

• Systematic sampling

• Quota sampling

• Volunteer sampling

• Random sampling

Which is most true regarding sampling

• Obtaining a representative sample is quite easy to do

• the purpose of a sample is to establish a specific participant type

• obtaining a representative sample is quite difficult to do

• all sample methods should represent the general population

when participants are selected from different sub-groups in the target population in proportion to the sub-groups frequency in that population it is known as

• Random sampling

• Opportunity sampling

• Systematic sampling

• Stratified sampling

Please tick ALL of the statements that are true for stratified sampling:

• The sample avoids researcher bias

• The sample is likely to be representative

• The sample involves selecting participants from each sub group of the target population

• The sample is quick and easy to create

Answer explanation

Stratified sampling involves ensuring that each sub group (such as age, gender, ability) are represented in the correct proportion within the sample. It is therefore very representative, but can take a long time to produce.

Tags

Sampling methods

Please tick ALL of the statements that are true for random sampling:

• The sample avoids researcher bias

• The sample is likely to be representative

• The sample can be created using a digital selector

• The sample will always contain an equal amount of each gender

Answer explanation

Random sampling involves using a technique to randomly select the participants (such as picking names out of a hat or using a digital selector). This removes any kind of researcher bias, but there is no guarantee that the sample will be representative.

Tags

Sampling methods

Define the term 'target population'.

Answer explanation

A group of people the researcher wants to study

What is a sample?

• A group of people the researcher wants to study

• A group of participants the research wishes to study

• A small group of a people who represent the target population

• A group of people whose names are pulled from a hat

Which one/s of the following is a strength to random sampling? (tick all that apply)

• No researcher bias

• Quick and easy

• Convenient

• Likely to be representative

Which one/s of the following is a strength to opportunity sampling? (tick all that apply)

• Quick and easy

• No researcher bias

• Very representative

• Convenient

Which one/s of the following is a strength to systematic sampling? (tick all that apply)

• Representative of the target population

• No researcher bias

• Simple procedure

• Convenient