Research Methods - Sampling Procedures

Question 1

Define: random allocation

Answer 1

Participants are randomly allocate to the experimental or control croup, and have an equal chance of being selected for either

Question 2

Define: population

Answer 2

The entire group of research interest from which the sample is drawn

Question 3

Define: sample

Answer 3

A subsection or smaller group of people chosen from the population of interest

Question 4

Define: sampling

Answer 4

The process of selecting participants for a sample

Question 5

Define: representative sample

Answer 5

A sample that represents the population in regards to participant characteristics. Includes random sampling and stratified sampling.

Question 6

What are the non-probability and probability sampling methods?

Answer 6

Non probability: convenience sampling

Probability: random sampling, stratified sampling, stratified-random sampling, random allocation

Question 7

Define: convenience sampling

Answer 7

Selection of participants who are readily available and convenient to obtain, may not be representative of the population

Question 8

Define: random sampling

Answer 8

Every member of the population has an equal chance of being selected as a participant. Selection on one doesn’t impact the selection of another.

Question 9

Define: stratified sampling

Answer 9

Dividing the population into strata, then selecting samples from each stratum, in the same proportions as they occur in the target population

Question 10

Define: stratum, (pl. strata)

Answer 10

Distinct subgroups

Question 11

Define: stratified-random sampling

Answer 11

Identifying all people within each stratum of research interest, then randomly selecting samples of proportionate size from within each stratum