The phrase "amount and extent" is correct and usable in written English.
It can be used when discussing the quantity and degree of something, often in contexts related to measurement or evaluation.
Example: "The amount and extent of the damage caused by the storm were more significant than initially reported."
Alternatives: "degree and quantity" or "scope and volume."
Besides, differential gene expression was balanced, with respect to both total mRNA amount and extent of over- and under-expression.
This enabled us to accurately measure the amount and extent of asphaltene deposits in the stainless steel tube.
The Poverty and Discrimination RG is charged with developing a regularized protocol for measuring the amount and extent of discrimination in labor and housing markets.
Since then the smaller companies, which are known as competitive local exchange carriers, have often quarreled with the established carriers, known as incumbents, over the amount and extent of access given to their networks.
"As a result of, among other things, WorldCom's chronic and pervasive failures to follow GAAP standards, and to mandate and institute appropriate internal controls, the exact amount and extent of WorldCom's overstatement of its income has not yet been quantified," the S.E.C. complaint says.
Since the formation of deposit layer makes it difficult for the oil flow along the tube, change in pressure difference across the test section of setup was recorded along the time to measure the amount and extent of deposition process at desired condition.
The strength of the EEJ influences the equatorial fountain and the amount and latitudinal extent of ionization transported from the equator to the lower latitudes.
The force of the impact and the position of the hand and carpal bone determine the pattern of articular fragmentation and their displacement and the amount and the extent of frequent concommitant ligament and carpal bone injury.
Design 2 shares the characteristics of Designs 1 and 3. Consistent with Design 1 is the assumption that patients within a subgroup truly change by approximately the same amount and the extent to which differences occur is attributed to measurement error.
The soil loss amount, severity and extents varied for the different parts of the sub watershed.
4 The amount of work and extent of partnership working required remains open to debate.
