The phrase "amount and difficulty of" is correct and usable in written English.
It can be used when discussing the quantity and level of challenge associated with a task, project, or subject matter.
Example: "The amount and difficulty of the homework assigned this week is quite overwhelming for the students."
Alternatives: "quantity and complexity of" or "extent and challenge of".
We increase the amount and difficulty of homework, disrupting the lives of children and their parents and even causing financial hardship.
And since promotions tend to be based on the amount and difficulty of the work you do, you're going to be passed over if you haven't been given the opportunity to prove yourself.
This satisfaction can be influenced by other factors besides the actual yearly dollar amount that a teacher makes from work as a teacher, like the amount and difficulty of the commensurate work required to earn that money, the degree of perceived support for professional development, the academic qualifications and teaching capabilities a teacher possesses, etc.
The OCBS is a 15-item instrument that rates caregiving tasks based on time spent (1= none, 5= a great amount) and difficulty of task (1= not difficult, 5= extremely difficult).
For the study, researchers defined job strain as a combination of demand (the amount, pace, and difficulty of the work) and control (the ability to make work-related decisions or be creative at work).
With increased illness, patients may become concerned about the amount of time and difficulty of caregiving tasks, such as administering medical/nursing treatments, providing emotional support, assisting with activities of daily living, and arranging for medical treatment and follow ups (Bakas et al 2004).
Otherwise they statistically correlated the amount of difficulty of surgery to the occurrence of nerve palsy.
Mental health was measured by two domains: memory in terms of amount of difficulty and emotion in terms of frequency of events.
Aqueous two-phase extraction requires large amounts of methanol and difficulty in separation of the two alcohols occur.
But with the increase of data, many data cannot be used efficiently because of the tremendous amount of data and information and the difficulty of process and transfer through network.
Accomplishing access to healthcare requires considerable work on the part of users, and the amount, difficulty, and complexity of that work may operate as barriers to receipt of care.
