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Choosing a correlation test

 

Explanations > Social Research > Analysis > Choosing a correlation test

Choosing the test | Discussion | See also

 

Choosing the test

Use the table below to choose the test. See below for further details.

 

How many dichotomous+ (binary) variables?

0

Both variables interval or ratio?

Y

Measures are linear? (No = monotonic*)
Y Pearson correlation
N Spearman correlation

N

Both variables are ordinal?

Y

 Kendall correlation

N

Both variables can be ranked?

Y

Kendall correlation

N

Convert to frequency data and use Chi-square test for independence

1

 Biserial Correlation Coefficient
2

2 x 2 table?

Y

 Phi

N

 Cramer's V

 

Data has frequency values for each category?

Y

Chi-square test for independence


+dichotomous = 'can have only two values' (eg. yes/no or 0/1).
*monotonic = constantly increasing or decreasing.

Discussion

A correlation coefficient is measured between -1 and 1.

A positive indicates that if one variable increases, the other increases also. A negative coefficient indicates that if one variable increases, the other decreases.

0 indicates no relationship between the two variables.

1 or -1 indicates a linear relationships, such that if one variable is known, the second can be accurately predicted.

See also

Types of data, Correlation

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Please help and share:

 

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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
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