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Unrepresentative Sample

 

Disciplines Argument > Fallacies > Unrepresentative Sample

Description | Discussion | Example | See also

 

Description

Sample X is taken from Population Y. Conclusion Z is drawn from sample X. It is assumed that Z is also true about Y.

Take a biased or otherwise statistically invalid sample. Analyze the data. Draw conclusions and declare the results significant.

Example

We surveyed homes during the day and found that 66% of the population enjoy soaps.

I asked four people in the street and three liked red. 75% of people like red.

Nine out of ten of cat owners we asked agreed that their cats like KitaKit.

Discussion

Most people believe they are pretty good at making statistical assessments. In fact we are generally pretty poor at it, and there are many traps into which we fall. Taking an unrepresentative sample is one of the most basic of these.

Where a sample is deliberately biased by leaving out data, this is the Fallacy of Exclusion.

Classification

Assumptive, Inductive, Statistical

Also known as

Biased Sample

See also

Theories about forecasting

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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