Vocabulary Words

Question 1

What is a Variable?

Answer 1

In an experiment, any factor that is measured or controlled and is capable of change.

Question 2

What is a Case Study?

Answer 2

A case study is an in-depth research method that involves an intensive investigation of one or more subjects.

Question 3

Experimental Group

Answer 3

Group of participants to which an independent variable is applied.

Question 4

What is Correlation ?

Answer 4

It’s the measure of a relationship between two variables or sets of data

Question 5

Single-blind experiment ?

Answer 5

An experiment in which the participants are unaware of which participants received the treatment.

   eg Milgram Experiment

Question 6

Double-blind experiment ?

Answer 6

An experiment in which neither the experimenter nor the participants know which participants receive which treatment.

Question 7

What is a Control Group?

Answer 7

In an experiment, a group of participants that is treated in the same way as the experimental group except that the experimental treatment ( independent variable) is not applied.

Question 8

Placebo effect

Answer 8

A change in a participant’s illness or behaviour that results from a belief that the treatment will have an effect rather than from the actual treatment.

Question 9

Self- fulfilling prophecy

Answer 9

A belief prediction or expectation that operates to bring about its own fulfillment

Question 10

Random sample

Answer 10

Sample group of a larger population selected in a way that each subject within the population has an equal chance of being selected.

Question 11

Stratified Sample

Answer 11

Sample group of a larger population in which sub groups within the larger population are represented proportionally.

Question 12

Survey

Answer 12

Research method in which information is obtained by asking many individuals a set of fixed questions about their attitudes/ behaviour.

Question 13

Cross-sectional study

Answer 13

Research method in which data are collected from groups of participants of different ages and compared so that conclusions can be drawn about differences due to age difference.

Question 14

Longitudinal Study

Answer 14

Research method in which data are collected about a group of participants over a number of years to assess how certain characteristics change and remain the same during development.

Question 15

Representative Sample

Answer 15

A selected group that reflects the characteristics of a given population in terms of the key variables being examined.

Question 16

Non representative Sample

Answer 16

A sample that is not selected in such a way as to be representative of the population.

Question 17

Milgram Experiment

Answer 17

An example of a single-blind experiment conducted by Stanley Milgram( experimenter) to investigate the extent to which people would obey authoritative figures.