changingminds.org

How we change what others think, feel, believe and do

 

Disciplines

 

Techniques

 

Principles

 

Explanations

 

Theories

 

 

Home

 

Blog!

 

Quotes

 

Guest articles

 

Analysis

 

Books

 

Help us

 

Links

 

 

Please help
and share:

 

Separate Pre-Post Samples design

 

Explanations > Social Research > Design > Separate Pre-Post Samples design

Description | Example | Discussion | See also

 

Description

This method is used when groups are being examined but where successive measurements cannot be sure of measuring the same people. For example entire companies or gangs.

The approach is simply to take a different sample, from both the target and control groups, for pre-tests and post-tests.

In design notation, this can be written as:

 

N1 O    
N1   X O
N2 O    
N2     O

 

Example

A researcher is examining the effects of a management method in temp agencies. She selects two secretarial agencies for study, with N1 as the treatment agency and N2 as the control. An initial survey of a sample of temporary workers is done before the managers in the treatment agency are coached over several months. The subsequent post-test is of a different sample shows the retention rate has increased by a significant amount as compared with the control agency.

Discussion

The assumption on which this test is founded is that people within each of the overall groups being assessed (the target and control) are relatively similar.

Different samples are taken from the control group also to measure at the same time as the treatment groups and hence counter any effects such as learning and wider population shifts over time.

The Separate Pre-Post Samples design is a quasi-experiment.

See also

Control-group design

More Kindle books:

And the big
paperback book


Add/share/save:


 

 


Save the rain


 

 


SalesProCentral

 

Contact Caveat About Students Webmasters Awards Guestbook Feedback Sitemap Changes

 

 

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

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

+ Identity

+ Learning

Meaning

Memory

Motivation

+ Models

* Needs

+ Personality

+ Power

* Preferences

+ Research

Relationships

+ SIFT Model

+ Social Research

Stress

+ Trust

+ Values

Theories

* Alphabetic list

* Theory types

 


  Changing Minds 2002-2013

  Massive Content -- Maximum Speed

TOP