"whose attainment" is a correct and usable phrase in written English.
It is used to indicate possession or ownership of something. For example, "Young children often have ambitious dreams whose attainment is difficult to achieve."
The impact is greatest on disadvantaged pupils entitled to free school meals - whose attainment declines with every additional kilometre separating their school from its nearest neighbour.
The goal of foreign and military policy must be to induce recalcitrant governments to coöperate, a goal whose attainment may or may not entail the use of force but cannot usefully entail making general war on the peoples such governments rule and in some cases (that of Afghanistan, for example) oppress.
It is a turning away from an arguably aristocratic idea of the intrinsic worth of things: from pleasure, with its sense of an internal condition of mind, to fun, so closely affiliated with outward activities; from excellence, an inner trait whose attainment is its own reward, to achievement, which comes through slogging and recognition.
This has led to the setting of ambitious new safety targets for air transport, whose attainment will require improved knowledge of causes of accidents and better understanding of the effects of new technologies and procedures.
With Ibn 'Arabī, we see a monumental effort to comment on a full array of metaphysical, cosmological, and psychological aspects of Gnosticism, thereby providing a vision of reality whose attainment requires the practice of the Sufi path.
Whose attainment target are they attached to?
"I am not acquainted with any young Gentleman whose attainments in literature are equal to his," she wrote to her husband.
The hses consists of non-working caregivers who are married and whose educational attainment is high (university level or above).
The lses includes non-married, non-working caregivers whose educational attainment is low (less than high school).
Schools can offer only education programmes whose final attainment levels are listed in the central VE programme register (CREBO).
2SLS estimates can be interpreted as causal effects for those individuals whose educational attainment is changed by the reform instruments (named compliers),12 given that four conditions are fulfilled (Imbens and Angrist, 1994 13: (i) Independence, reform exposure is as good as random, conditional upon the controls included.
