standard score: meaning, definition, pronunciation and examples
C1/C2Technical/Academic
Quick answer
What does “standard score” mean?
A statistical measure that expresses how many standard deviations a data point is from the mean of a distribution.
Audio
Pronunciation
Definition
Meaning and Definition
A statistical measure that expresses how many standard deviations a data point is from the mean of a distribution.
A normalized score used to compare results from different tests or distributions, often called a z-score in statistics. In educational and psychological testing, it can also refer to scaled scores like T-scores or stanines, which are derived from the basic z-score concept.
Dialectal Variation
British vs American Usage
Differences
No significant differences in meaning or usage. The compound noun is used identically in both varieties.
Connotations
Identical technical connotations in both varieties.
Frequency
Equally low-frequency and technical in both UK and US English, confined to specialist fields.
Grammar
How to Use “standard score” in a Sentence
The standard score of [data point/noun phrase] is [number].To calculate the standard score for [dataset].[Subject] has a standard score of [number].Vocabulary
Collocations
Examples
Examples of “standard score” in a Sentence
verb
British English
- [Not applicable as a verb]
American English
- [Not applicable as a verb]
adverb
British English
- [Not applicable as an adverb]
American English
- [Not applicable as an adverb]
adjective
British English
- [Not applicable as an adjective. The term is a compound noun.]
American English
- [Not applicable as an adjective. The term is a compound noun.]
Usage
Meaning in Context
Business
Rare. Might appear in advanced analytics or HR for psychometric testing.
Academic
Primary context. Common in statistics, psychology, education research, and data science papers.
Everyday
Extremely rare. Would not be used in general conversation.
Technical
Primary context. Standard term in statistics, psychometrics, and educational assessment.
Watch out
Common Mistakes When Using “standard score”
- Using 'standard score' to mean a 'passing grade' or 'benchmark score'.
- Confusing it with a 'percentage score' or 'percentile rank'.
- Omitting the necessary context of a mean and standard deviation when defining it.
FAQ
Frequently Asked Questions
Yes, in its most basic form, a standard score is a z-score. However, the term 'standard score' can sometimes be used more broadly to include other derived scores like T-scores or stanines, which are based on the z-score.
Yes. A negative standard score indicates the data point is below the mean of the distribution.
Most commonly in educational testing reports (e.g., IQ scores, standardized academic tests), psychological assessments, and any field using statistical process control or data normalization.
You need the raw score (x), the mean (average) of the dataset (μ), and the standard deviation of the dataset (σ). The formula is: z = (x - μ) / σ.
A statistical measure that expresses how many standard deviations a data point is from the mean of a distribution.
Standard score is usually technical/academic in register.
Standard score: in British English it is pronounced /ˈstændəd skɔː/, and in American English it is pronounced /ˈstændərd skɔr/. Tap the audio buttons above to hear it.
Phrases
Idioms & Phrases
- “[No common idioms for this technical term]”
Learning
Memory Aids
Mnemonic
Think of a 'standard' ruler (the standard deviation) used to 'score' how far something is from the average.
Conceptual Metaphor
A DISTANCE metaphor: The score is the 'distance' (in standard deviations) a point is from the 'centre' (the mean).
Practice
Quiz
What does a standard score of 0 typically indicate?