Advertise Here!

Experimental Design Tutorial: Quick Reference Guide



Experimental Design Tutorial Quick Reference Guide


Want To Study Psychology?



Psychology Programs




This quick reference guide outlines some of the key experimental design concepts that you need to be aware of during your time as a psychology student. The guide is designed to used in conjunction with an easy to follow experimental design tutorial which you can access via the following link.


Experimental Design Tutorial



EXPERIMENTAL HYPOTHESIS (H1)

The prediction of the outcome of the experiment


ONE-TAILED EXPERIMENTAL HYPOTHESIS

Predicts the way that behavior will change


TWO-TAILED EXPERIMENTAL HYPOTHESIS

Simply states that the behavior will change


NULL HYPOTHESIS (H0)

Simply states that any observed differences between groups were down to chance.


INDEPENDENT VARIABLE (IV)

The one factor that is different between the conditions


DEPENDENT VARIABLE (DV)

The aspect of behavior that is measured


EXTRANEOUS VARIABLE

Anything, other than the IV that might have had an effect on the result of the experiment.


CONFOUNDING VARIABLE

An extraneous variable that does effect the result of the experiment. In doing so, it becomes impossible to say whether any difference found was due to the IV or the confounding variable.


INDEPENDENT SUBJECTS DESIGN

Some subjects perform in experimental condition and others in control condition.


REPEATED MEASURES DESIGN

All subjects perform in both experimental condition and control condition


MATCHED PAIRS DESIGN

As a result of a pre-test subjects are sorted into pairs. One of the pair performs in the experimental condition and the other performs in the control.


ORDER EFFECTS

If a participant has to perform a series of actions, the order in which she/he performs them will have an effect on the efficiency of each action. The two main order effects are practice (increases efficiency) and fatigue (decreases efficiency).


COUNTERBALANCING

Employed to ensure that order effects have an equal effect by alternating the conditions.


Recent Articles

  1. Journal of Neuropsychiatry, Neuropsychology, and Behavioral Neurology: Today in the History of Psychology 23rd August 1988

    Aug 23, 17 10:00 AM




    Issue 1 of The Journal of Neuropsychiatry, Neuropsychology, and Behavioral Neurology was published. In his introductory statement, editor-in-Chief Michael Taylor stated that 'neuropsychiatry, neuropsy…

    Read More

  2. Floyd Henry Allport: Today in the History of Psychology (22nd August 1890)

    Aug 22, 17 10:00 AM




    Floyd Henry Allport was born. Renowned as a distinguished theorist and innovative researcher, Allport is widely considered to be the first psychologist to systematically study group processes and soci…

    Read More

  3. Milton Theaman: Today in the History of Psychology (21st August 1916)

    Aug 21, 17 10:00 AM




    Milton Theaman was born. Renowned for his unceasing commitment to promoting the social usefulness of psychology, Theaman was an influential writer and speaker on issues relating to professional accoun…

    Read More


New! Comments

Have your say about what you just read! Leave me a comment in the box below.




Back To The Top Of The Page


Go To The Experimental Design Tutorial Page


Go To The Home Page