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public:rem4:rem4-18:design_of_comparative_experiments_i [2018/01/28 20:32]
thorisson
public:rem4:rem4-18:design_of_comparative_experiments_i [2018/01/28 20:34] (current)
thorisson
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-===Concepts===+====Concepts====
 | Experimental design  | A planned interference in the natural order of events.  | | Experimental design  | A planned interference in the natural order of events.  |
 | Subject(s)  | Subject of interest - that to be studied, whether people, technology, natural phenomena, or other  | | Subject(s)  | Subject of interest - that to be studied, whether people, technology, natural phenomena, or other  |
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-===Correlational Studies & Quasi-Experimental Design===+====Correlational Studies & Quasi-Experimental Design====
 | Correlation  | Some factors/variables co-vary when changes in one variable are related with changes in the other, negative or positive  | | Correlation  | Some factors/variables co-vary when changes in one variable are related with changes in the other, negative or positive  |
 | Correlation: Powerful tool  | Any variables in the world can be measured for correlation. Only two variables are needed (independent and dependent) for doing correlation studies  | | Correlation: Powerful tool  | Any variables in the world can be measured for correlation. Only two variables are needed (independent and dependent) for doing correlation studies  |
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-===Pilots===+====Pilots====
 | What is it?  | A more loose, pre-study using the intended experimental design to tune it  \\ A pre-study intended to gauge the nature, scales or other factors of the variables to be measured, or the subject to be measured  | | What is it?  | A more loose, pre-study using the intended experimental design to tune it  \\ A pre-study intended to gauge the nature, scales or other factors of the variables to be measured, or the subject to be measured  |
 | Why and when  | Pilots are much more useful than you might think. Yes, it will increase the duration and effort of your experiment BUT: It can significantly improve the quality of the subsequent experiment in many cases. It will certainly clarify and sharpen the experimenter's understanding of one or more of: the experiment, experimental procedure, variables and subjects.  | | Why and when  | Pilots are much more useful than you might think. Yes, it will increase the duration and effort of your experiment BUT: It can significantly improve the quality of the subsequent experiment in many cases. It will certainly clarify and sharpen the experimenter's understanding of one or more of: the experiment, experimental procedure, variables and subjects.  |
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-===Field Studies===+====Field Studies====
 | What is it?  | Quasi-experimental design. To study a phenomeon "in the wild".  | | What is it?  | Quasi-experimental design. To study a phenomeon "in the wild".  |
 | When  | When a controlled experimental setup is not possible.  | | When  | When a controlled experimental setup is not possible.  |
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-===Repeated Measures (aka ABAB) ===+====Repeated Measures (aka ABAB) ====
 | What is it?  | Repeated measurements of the same sample, varying the independent variables between sessions  | | What is it?  | Repeated measurements of the same sample, varying the independent variables between sessions  |
 | When  | When control group is not possible; When the group of subjects is small or single-case (e.g. medical studies)  | | When  | When control group is not possible; When the group of subjects is small or single-case (e.g. medical studies)  |
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-===Controled Experiment===+====Controlled Experiment====
 | What is it?   | A fairly recent research method, historically speaking, for testing hypotheses / theories  | | What is it?   | A fairly recent research method, historically speaking, for testing hypotheses / theories  |
 | When  | When it is possible to control and select everything of importance to the subject of study  | | When  | When it is possible to control and select everything of importance to the subject of study  |
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-===Usability Studies===+====Usability Studies====
 | What is it?  | The study of human use of technology.  \\ Not an experimental design paradigm in and of itself, yet important enough to warrant special discussion  | | What is it?  | The study of human use of technology.  \\ Not an experimental design paradigm in and of itself, yet important enough to warrant special discussion  |
 | When  | When technology and/or its users are of interest  | | When  | When technology and/or its users are of interest  |
/var/www/ailab/WWW/wiki/data/pages/public/rem4/rem4-18/design_of_comparative_experiments_i.txt ยท Last modified: 2018/01/28 20:34 by thorisson