What is an example of an extraneous variable?

An extraneous variable is any variable you’re not interested in studying that could also have some effect on the dependent variable. For example, we might want to know how the number of hours that a basketball player trains per week affects their average points per game.

What are the 4 types of extraneous variables?

There are four types of extraneous variables:

  • Situational Variables. These are aspects of the environment that might affect the participant’s behavior, e.g. noise, temperature, lighting conditions, etc.
  • Participant / Person Variable.
  • Experimenter / Investigator Effects.
  • Demand Characteristics.

What are 5 extraneous variables?

A confounding variable is a variable that influences both the independent and dependent variables in an experiment….Confounding Variable.

Overview: Extraneous Variables
Type Experiment Variables
Definition Variables that can influence an experiment that aren’t the independent variables that you are testing.

What are outside factors in an experiment?

External Variables (aka Extraneous Variables or Confounding Variables) are factors that are not manipulated as part of an experiment, but they may exert some influence on the dependent variable under study.

Is gender an extraneous variable?

Extraneous variables are often classified into three main types: Subject variables, which are the characteristics of the individuals being studied that might affect their actions. These variables include age, gender, health status, mood, background, etc.

What is extraneous variable and how can it be controlled?

Essentially, an extraneous variable is any factor that can affect an experiment’s dependent variables, which are the controlled conditions. Since unexpected variables can change an experiment’s interpretation and results, it’s important to learn how to control them. Upload your resume on Indeed.

What’s the difference between extraneous and confounding variables?

An extraneous variable is any variable that you’re not investigating that can potentially affect the dependent variable of your research study. A confounding variable is a type of extraneous variable that not only affects the dependent variable, but is also related to the independent variable.

What is the difference between independent dependent and extraneous variables?

The dependent varible is defined as the thing which is being measured in an experiment, whilst the independent variable is the thing that is being manipulated or changed. Extraneous variables are undesirable variables that influence the relationship between the variables that the experimenter is observing.

Is air temperature extraneous variable?

For example, if a participant is taking a test in a chilly room, the temperature would be considered an extraneous variable. Some participants may not be affected by the cold, but others might be distracted or annoyed by the temperature of the room.

How researchers control extraneous variables?

An extraneous variable is eliminated, for example, if background noise that might reduce the audibility of speech is removed. Unknown extraneous variables can be controlled by randomization. Randomization ensures that the expected values of the extraneous variables are identical under different conditions.

Is motivation an extraneous variable?

Examples of Extraneous Variables Extraneous variables might include the volunteers’ physical condition, motivation to succeed, and overall energy levels on the day of the marathon.

Is room temperature an extraneous variable?

Situational variables: These extraneous variables are related to things in the environment that may impact how each participant responds. For example, if a participant is taking a test in a chilly room, the temperature would be considered an extraneous variable.