EXAM- Participant Selection And Allocation For Experiments

Question 1

Sampling

Answer 1

Process of selecting participants from a population of research interest

Question 2

Representative sample

Answer 2

A sample that is approximately the same as the population from which it was drawn

Question 3

Random sampling

Answer 3

Sampling procedure which ensures every member of the population of research interest have equal chance of being selected

Question 4

Stratified sampling

Answer 4

Sampling procedure which involves dividing the population to be sampled in different subgroups and selecting separate sample from each sub group

Question 5

Convenience sampling

Answer 5

Sampling procedure involving selection of participants who are readily available

Question 6

Random allocation

Answer 6

Procedure used to assign participants to experimental and control group so that each one has genuinely equal chance of being placed in any of the groups

Question 7

Counterbalancing

Answer 7

Systematically changing the order of treatments or tasks for participants in a balanced way to counter unwanted effects on performance

Question 8

Single-blind

Answer 8

Participants do not know whether they are in an experimental or a control group

Question 9

Double-blind

Answer 9

Neither the participant nor the researcher interacting with the participants know which participants are in the experimental or control group

Question 10

Placebo-effect

Answer 10

Any change in participants behaviour due to their belief that they are receiving some kind of experimental treatment and respond in accordance to that belief

Question 11

Placebo

Answer 11

Fake treatment that is like the independent variable treatment but which has no known effect

Question 12

Standardised instructions and procedures

Answer 12

Instructions and procedures are the same for all the participants