nonadditivity
1
9.9
- noun
- /ˌnɒnˌædɪˈtɪvɪti/
- Specialized
- In this experiment, nonadditivity was evident as the combined outcomes were not equal to the sum of individual effects.
Examples
-
For each regression, diagnostic testing for collinearity, nonadditivity, and outliers was performed.
Academic text (2008) -
To test for nonadditivity, all possible two-way interactions between significant variables in each analysis were examined.
Academic text (2008) -
Analyses are of the numbers of participants having a first event of each type during follow-up (with nonfatal and fatal events considered separately), so there is some nonadditivity between different types of events.
Blog text (29) -
Menard (2002) suggested a protocol for logistic regression diagnostics that includes testing for collinearity, nonadditivity, and outliers.
Academic text (2008) -
The researchers confirmed the nonadditivity of the medication's effects when combined with other treatments.
-
The team's findings highlighted the importance of nonadditivity in understanding complex environmental interactions.
Antonyms
How Additive
- Specialized
1
7.9
- Specialized
1
9.9
Surface Forms
Morphology
nonadditivity = additivity (semi-transparent) = non + additive + ity
The word is transparently formed by adding non- to the technical noun additivity, but the full meaning depends on knowing the specialized term additivity.
Etymology
Nonadditivity comes from parts you know: non- meaning 'not', add meaning 'to join or add', and -ity which makes a noun. Think of mixing two paints or two ideas and getting something new — the total is not just the sum of the parts, so nonadditivity describes when a whole is not simply the added parts.