Controlling Variables in Research

A modern classroom setting with students engaging in a research project, illustrating concepts of experimental design and variable control, with charts and graphs visible.

Controlling Variables in Research

Test your knowledge on how researchers control extraneous variables in studies. This quiz covers essential concepts like demand characteristics, experimenter bias, and various techniques used in research design.

Multiple choice questions
Short answer definitions
Checkbox selections for identifying variables

10 Questions2 MinutesCreated by AnalyzingData274

How do researchers control extraneous variables?

By increasing the ecological validity of the study

By standardizing the procedure of the study

By lowerinv demand characteristics of researcher

The use of single-blind technique in controlling variables is to..

Avoid researchers from conducting unethical studies

Avoid participants’ withdrawal from the study

Avoid participants from behaving unnaturally

Researchers often use ‘random’ design when trying to control variables such as

Age, status and money

IQ, motivation and memory

Motivation, hair colour and favourite food

Extraneous variables can be (pick two only)

Low in validity

Participant variables (IQ, mood etc)

Confounding variables

Situational variables (temperature of the room, lighting etc)

Poor research planning

Bias during research such as experimenter bias can be controlled by

Matched-pairs design

Participant variables

Randomization

Identify a way in which researcher could use a double-blind technique to avoid experimenter effects

By telling participants the aim of the study and asking a friend to run part of the study without knowing the nature of the study

By not telling participants and an observer/a friend the actual aim or the nature of the study

By not telling the participants, but the observer must know the aim

Lab experiments usually ‘standardised’ the procedure of their study. Why? (Pick 3 answers)

To increase the ecological validity of the study

To increase reliability of the study

To ensure consistent measurement is done

To ensure all sort of biases and extraneous variables could be controlled

The study will be replicable to test for further consistency

Controlling Variables in Research

Controlling Variables in Research

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