In a psychology experiment, the experimental group (or experimental condition) refers to the group of participants who are exposed to the independent variable . These participants receive or are exposed to the treatment variable.
What are experimental conditions?
a level of the independent variable that is manipulated by the researcher in order to assess the effect on a dependent variable. Participants in an experimental condition receive some form of treatment or experience whereas those in a control condition do not.
What is an example of experimental condition in psychology?
For example, if I am studying the effects of 2 different pain medications of headaches , I may give people who have headaches either Tylenol or Bayer (the treatment groups; thus in this example there are two levels of the IV; one level is Tylenol, the other is Bayer, but both are part of the experimental condition).
What is the control condition in psychology?
in an experiment or research design, a condition that does not involve exposure to the treatment or intervention under study .
What do you mean by controlled and experimental condition?
Control Condition Definition
The control condition in an experimental design lacks any treatment or manipulation of the independent variable . ... Everything in a control condition is the same as the experimental conditions except that the independent variable is absent or held constant.
What are examples of experimental conditions?
For example, patients in an experimental condition may receive a new drug , whereas those in a control condition may receive a pill that looks like the new drug but is only a placebo containing some inert substance.
What is an example of an experimental group?
An experimental group (sometimes called a treatment group) is a group that receives a treatment in an experiment. ... For example, a human experimental group could receive a new medication, a different form of counseling, or some vitamin supplements .
What is an experimental hypothesis example?
Examples of If, Then Hypotheses
If you get at least 6 hours of sleep, you will do better on tests than if you get less sleep . If you drop a ball, it will fall toward the ground. If you drink coffee before going to bed, then it will take longer to fall asleep.
What is an experimental condition that changes?
These changing quantities are called variables . A variable is any factor, trait, or condition that can exist in differing amounts or types. An experiment usually has three kinds of variables: independent, dependent, and controlled. The independent variable is the one that is changed by the scientist.
What is experimental treatment?
an intervention or regimen that has shown some promise as a cure or ameliorative for a disease or condition but is still being evaluated for efficacy, safety, and acceptability.
How do you randomly allocate participants in psychology?
Random allocation is when the researchers divide the participants and allocate them to certain groups using a random method . For instance, in an experiment to test the effects of a new drug on depression the researchers might use a random number generator to assign their 25 participants a number from 1 – 25.
What is control group in psychology?
The control group is composed of participants who do not receive the experimental treatment . ... They also closely resemble the participants who are in the experimental group or the individuals who receive the treatment. While they do not receive the treatment, they do play a vital role in the research process.
How do you control order effects in psychology?
Carryover and interference effects can be reduced by increasing the amount of time between conditions. Researchers also reduce order effects by systematically varying the order of conditions so that each condition is presented equally often in each ordinal position. This procedure is known as counterbalancing .
What is the advantage of an experiment?
In an experiment, an independent variable (the cause) is manipulated and the dependent variable (the effect) is measured; any extraneous variables are controlled. An advantage is that experiments should be objective . The views and opinions of the researcher should not affect the results of a study.
What is the difference between experimental and control group?
An experimental group, also known as a treatment group, receives the treatment whose effect researchers wish to study, whereas a control group does not . They should be identical in all other ways.
Why is it important to have a control group in an experimental investigation?
The control group consists of elements that present exactly the same characteristics of the experimental group, except for the variable applied to the latter. This group of scientific control enables the experimental study of one variable at a time , and it is an essential part of the scientific method.
