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Switching Replications design

 

Explanations > Social Research > Design > Switching Replications design

Description | Example | Discussion | See also

 

Description

A two-group experiment is done as normal, with a treatment group and a control, with parallel pre- and post-tests. The roles are then switched and the experiment reproduced with the control becoming treatment group and the initial treatment group becoming the control.

In design notation this is:

 

R O X O   O
R O   O X O

 

Example

An experiment to test a method of increasing suggestibility shows unexpected success. As there is time available (the participants agreed to full day of activity), the experiment is continued with a switch of treatment, applying it to the control group. The results show that the control group are similarly affected. The re-test of the original treatment group also shows that the suggestibility is sustained, at least for the hour between the first and second post-tests.

Discussion

Sometimes there may be a suspicion that the control group and treatment group have some fundamental difference that is distorting results. This effect is more likely when the sample groups are small. It can also appear when there has been a problem in the assignment of people to groups, such as when a couple people from a minority end up in a single group and cause bias in the results.

This method effectively switches their roles and after the initial treatment/no treatment stages, the control group becomes the treatment group and vice versa for a second round.

This is not a completely independent affair as the repeated pre-test for the control group could cause priming effects, in which case the Solomon Four-Group design could be used an additional check.

See also

 

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Site Menu

| Home | Top | Quick Links | Settings |

Main sections: | Disciplines | Techniques | Principles | Explanations | Theories |

Other sections: | Blog! | Quotes | Guest articles | Analysis | Books | Help |

More pages: | Contact | Caveat | About | Students | Webmasters | Awards | Guestbook | Feedback | Sitemap | Changes |

Settings: | Computer layout | Mobile layout | Small font | Medium font | Large font | Translate |

 

 

Please help and share:

 

Quick links

Disciplines

* Argument
* Brand management
* Change Management
* Coaching
* Communication
* Counseling
* Game Design
* Human Resources
* Job-finding
* Leadership
* Marketing
* Politics
* Propaganda
* Rhetoric
* Negotiation
* Psychoanalysis
* Sales
* Sociology
* Storytelling
* Teaching
* Warfare
* Workplace design

Techniques

* Assertiveness
* Body language
* Change techniques
* Closing techniques
* Conversation
* Confidence tricks
* Conversion
* Creative techniques
* General techniques
* Happiness
* Hypnotism
* Interrogation
* Language
* Listening
* Negotiation tactics
* Objection handling
* Propaganda
* Problem-solving
* Public speaking
* Questioning
* Using repetition
* Resisting persuasion
* Self-development
* Sequential requests
* Storytelling
* Stress Management
* Tipping
* Using humor
* Willpower

Principles

+ Principles

Explanations

* Behaviors
* Beliefs
* Brain stuff
* Conditioning
* Coping Mechanisms
* Critical Theory
* Culture
* Decisions
* Emotions
* Evolution
* Gender
* Games
* Groups
* Habit
* Identity
* Learning
* Meaning
* Memory
* Motivation
* Models
* Needs
* Personality
* Power
* Preferences
* Research
* Relationships
* SIFT Model
* Social Research
* Stress
* Trust
* Values

Theories

* Alphabetic list
* Theory types

And

About
Guest Articles
Blog!
Books
Changes
Contact
Guestbook
Quotes
Students
Webmasters

 

| Home | Top | Menu | Quick Links |

© Changing Works 2002-
Massive Content — Maximum Speed