Advertise Here!




www.all-about-psychology.com/psychology-advertising.html



Experimental Design Tutorial: Quick Reference Guide



Experimental Design Tutorial Quick Reference Guide




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. Norma Estelle Cutts: Today in the History of Psychology (23rd September 1892)

    Sep 23, 18 10:00 AM




    Norma Estelle Cutts was born. A pioneer in the provision of school psychological services in the United States, her landmark publication in 1943 "How to Use Psychological Service in the Schools, A Gui…

    Read More

  2. Robert Thorndike: Today in the History of Psychology (22nd September 1910)

    Sep 22, 18 10:00 AM




    Robert Thorndike was born. A brilliant psychometrician, Thorndike is best known for his collaborative work with Irving Lorge and Elizabeth Hagen in developing measures of mental and scholastic ability…

    Read More

  3. Albert Beckham: Today in the History of Psychology (21st September 1897)

    Sep 21, 18 10:00 AM




    Albert Beckham was born. A profoundly influential figure in the field of school psychology, Beckham pioneered the introduction of psychological services within public schools and established the first…

    Read More


New! Comments

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




If you like this website please support my All About Psychology Patreon Page so that I can continue to create free content and resources for psychology students and educators.



On This Day in Psychology Amazon Alexa





Back To The Top Of The Page


Go To The Experimental Design Tutorial Page


Go To The Home Page