Tips On Conducting Experiments

From PsychWiki - A Collaborative Psychology Wiki

(Difference between revisions)
Jump to: navigation, search
Cwarren (Talk | contribs)
(Manipulation Checks)
Michaelw (Talk | contribs)
m (Mining your data for ideas)
Line 107: Line 107:
* If your research involves between-group comparisons, run scatterplots with your groups down on the x-axis and your dependent variable on the y-axis. This will help you see how the scores are clustered across the groups. It will also give you some assurance that outliers are not having an undue influence on differences between groups.  
* If your research involves between-group comparisons, run scatterplots with your groups down on the x-axis and your dependent variable on the y-axis. This will help you see how the scores are clustered across the groups. It will also give you some assurance that outliers are not having an undue influence on differences between groups.  
-
* If your research involves mean comparisons, try analyzing your data using trimmed means [http://www.google.com/search?q=trimmed+means], which will allow you to focus on what is happening to the average participants in each condition while ignoring the participants in the tails. This is especially important if you are looking at pilot data collected from relatively small samples.
+
* If your research involves mean comparisons, try analyzing your data using trimmed means [http://www.google.com/search?q=trimmed+means][http://bible-truth-awareness.blogspot.com/] [http://cognigen-telecom.blogspot.com/][http://telebay-telecom.blogspot.com/][http://squidoo-phone.blogspot.com/], which will allow you to focus on what is happening to the average participants in each condition while ignoring the participants in the tails. This is especially important if you are looking at pilot data collected from relatively small samples.
==Running subjects==
==Running subjects==

Revision as of 05:18, 12 April 2009

Lessons learned from conducting experimental research...


Contents


Design Features

Pilot Testing

Random Assignment

Control Conditions

Manipulation Checks

Cell Sizes

Mining your data for ideas

Running subjects










◄ Back to Research Tools mainpage

Personal tools
Namespaces
Variants
Actions
Navigation
Interaction
Toolbox