eta
1
7.7
- noun
- /ˈiːtə/
- Specialized
- In statistics, eta squared (η) represents a measure of effect size that indicates the strength of the relationship between variables.
- eta squared
- eta =
- partial eta
Examples
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The main effect for age reached statistical significance on social motives F(3, 383) = 14.82, p < .001, with a high effect size (eta squared = .10).
Academic text (2005) -
This number is the expectation over ETA of something, right?
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However, the magnitude of the differences was small (eta squared = .03).
Academic text (2005) -
The overall model was significant, F(6,490) = 5.05, p = .000, partial eta = .059, power = .99.
Academic text (2005) -
The effect size was moderate on excitement motives (eta squared = 0.07) and small on social motives (eta squared = 0.05).
Academic text (2005) -
Calculating the effect size for the independent samples t-test showed a small effect on social motives (eta squared = .05) and a very large effect on excitement motives (eta squared = .29).
Academic text (2005) -
Wilkinson and the APA Task Force on Statistical Inference (1999) suggest that researchers should report effect size estimates together with p-values. Partial eta squares (n p, sup 2) are used to indicate effect size estimates in the current study.
Academic text (2006) -
The symbol for eta is commonly used in mathematical equations to denote specific constants or parameters.
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Eta is the seventh letter of the Greek alphabet and is often used in scientific contexts to represent a variable.
Surface Forms
Etymology
Eta is the seventh letter of the Greek alphabet and its name comes from an old Greek word for the 'long e' sound, written ē, which you can hear in the English word 'eat'. That's why people in math and science use eta as a symbol: it is a single letter that can stand for things like 'efficiency' or other values.