The phrase "age discontinuity" is correct and usable in written English.
It can be used in contexts discussing differences or gaps in age, particularly in fields like psychology, education, or sociology.
Example: "The study revealed significant age discontinuity among participants, affecting their social interactions and learning processes."
Alternatives: "age gap" or "age disparity".
It's a theme I've discussed elsewhere, regarding this age of discontinuity and disruption, with its constant sense that, at a given moment, something happening somewhere else is more important than yet inescapably a part of whatever is happening here (whichever place "here" may be).
But I also knew that I was living through an age of discontinuity — that the world of rock that I had grown up loving was sorely squeezing the world of jazz that I newly loved, that jazz was changing under the influence of a new popular idiom, that I was catching the vestiges of a classic era that was becoming something else — not necessarily worse, but radically different.
The UK Minimum Wage at 22 Years of Age: A Regression Discontinuity Approach.
We analysed the percentage of indeterminate sleep, transient sharp waves per hour and mature-for-gestational age EEG patterns (discontinuity, maximum duration of interburst interval (IBI), asynchrony, asymmetry, δ brushes, encoches frontales and α/θ rolandic activity).
This study used an age-cutoff regression discontinuity design to examine the impact of a well-resourced Early Reading First prekindergarten program designed to foster the language and literacy development of 4-year-old children from low-income homes.
We exploit the discontinuity in age when children start kindergarten generated by state eligibility laws to examine whether relative age is a significant determinant of ADHD diagnosis and treatment.
We tested whether there was evidence for substitution or complement use at the discontinuity of age 21, when drinking becomes legal in all 50 states in the US.
The interpretation of functional parameters in the transition from childhood to adolescence was highlighted by the multiplicity of reference values and the discontinuity between age groups.
The age of major stratigraphic discontinuities has been constrained by a direct tie to ODP site 987 drilled in the Greenland Sea basin plain off Scoresby Sund fan system.
