pearson's correlation coefficient: meaning, definition, pronunciation and examples
Low frequency in general contexts, high frequency in academic/technical contexts.Formal, academic, technical, scientific.
Quick answer
What does “pearson's correlation coefficient” mean?
A statistical measure that quantifies the strength and direction of the linear relationship between two continuous variables, ranging from -1 (perfect negative correlation) to +1 (perfect positive correlation).
Audio
Pronunciation
Definition
Meaning and Definition
A statistical measure that quantifies the strength and direction of the linear relationship between two continuous variables, ranging from -1 (perfect negative correlation) to +1 (perfect positive correlation).
In research and data analysis, it is the most common measure of linear correlation. An r value close to 0 indicates no linear relationship, while values near ±1 suggest a strong linear pattern. It is also known as Pearson's r and is foundational for regression analysis and inferential statistics.
Dialectal Variation
British vs American Usage
Differences
Terminology is identical. Pronunciation of 'coefficient' may show slight stress variation.
Connotations
None; purely technical.
Frequency
Equally frequent in scientific literature in both regions.
Grammar
How to Use “pearson's correlation coefficient” in a Sentence
The Pearson's correlation coefficient between X and Y is r.To calculate Pearson's correlation coefficient for the data.A Pearson's correlation coefficient of 0.8 indicates a strong positive relationship.Vocabulary
Collocations
Examples
Examples of “pearson's correlation coefficient” in a Sentence
verb
British English
- We need to Pearson-correlate the two datasets.
- The variables were Pearson-correlated.
American English
- We need to run a Pearson correlation on the two datasets.
- The variables were correlated using Pearson's method.
adverb
British English
- The data were correlated Pearsonly.
American English
- The analysis was performed Pearson-style.
adjective
British English
- The Pearson correlation analysis revealed a significant result.
- A Pearson coefficient was calculated.
American English
- The Pearson correlational analysis showed a strong link.
- The Pearson coefficient was significant.
Usage
Meaning in Context
Business
Used in market research, finance, and analytics to assess relationships between variables like advertising spend and sales.
Academic
The standard measure of linear correlation in psychology, medicine, social sciences, and natural sciences research papers.
Everyday
Extremely rare in everyday conversation; typically replaced by simpler terms like 'link' or 'connection'.
Technical
Precisely defined in statistics textbooks, software documentation (e.g., R, SPSS outputs), and methodological sections of research.
Vocabulary
Synonyms of “pearson's correlation coefficient”
Strong
Neutral
Weak
Vocabulary
Antonyms of “pearson's correlation coefficient”
Watch out
Common Mistakes When Using “pearson's correlation coefficient”
- Omitting the apostrophe and 's' (incorrect: 'Pearson correlation coefficient').
- Using it to imply causation (correlation does not equal causation).
- Applying it to categorical or ordinal data without checking assumptions.
- Pronouncing 'Pearson' as 'peer-son' instead of 'peer-sun'.
FAQ
Frequently Asked Questions
It means there is no linear relationship between the two variables. However, a non-linear relationship might still exist.
No, it is designed for continuous, interval, or ratio data that are normally distributed. For ordinal data, Spearman's rank correlation coefficient is appropriate.
Pearson's r is the correlation coefficient measuring the strength and direction of a linear relationship. R-squared (r²) is the square of r and represents the proportion of variance in one variable explained by the other.
It was developed by the British mathematician and statistician Karl Pearson in the late 19th century.
A statistical measure that quantifies the strength and direction of the linear relationship between two continuous variables, ranging from -1 (perfect negative correlation) to +1 (perfect positive correlation).
Pearson's correlation coefficient is usually formal, academic, technical, scientific. in register.
Pearson's correlation coefficient: in British English it is pronounced /ˈpɪəsənz ˌkɒr.əˈleɪ.ʃən ˌkəʊ.ɪˈfɪʃ.ənt/, and in American English it is pronounced /ˈpɪrsənz ˌkɔːr.əˈleɪ.ʃən ˌkoʊ.ɪˈfɪʃ.ənt/. Tap the audio buttons above to hear it.
Learning
Memory Aids
Mnemonic
Think of a PEAR forming a straight SON (line) — 'Pear-son' measures how well two sets of data form a straight-line relationship.
Conceptual Metaphor
LINEAR ASSOCIATION IS A STRENGTH SCALE (from -1 to +1); COORDINATION IS CORRELATION.
Practice
Quiz
A Pearson's correlation coefficient of -0.9 indicates: