The phrase "assertiveness with" is correct and usable in written English.
It can be used when discussing the quality of being assertive in relation to a specific person, group, or situation.
Example: "Her assertiveness with her colleagues helped to foster a more open and communicative work environment."
Alternatives: "confidence in" or "self-assurance with".
They also were rewarded for their assertiveness with 21 free-throw attempts.
I would have done better to balance my assertiveness with vulnerability – to be more real.
Neither president mentioned Georgia in public on Thursday or the broader issue of Russia's assertiveness with its neighbors.
Privilege collides with deprivation, assertiveness with helplessness, theory with reality, but it never spins out of control.
Just by being there and saying, "I like this, or that," Oribe established a period aesthetic, one that balanced new-found assertiveness with old-style restraint.
While Mr Barroso has been personally unnerved by the chilly wind from Berlin, other European leaders are noting Ms Merkel's assertiveness with interest.
The use of a formal procedure generates data which can be used with assertiveness and with results that provide an initial ranking list that helps to shape the decision-making process.
While oncology patients in general have been found not to disclose concerns about their underlying beliefs which do not fit with the dominant biomedical paradigm [ 3], some CSPs stereotyped Aboriginal patients and associated their non-assertiveness with cultural differences, lack of education and understanding.
Swanberg (who does his own cinematography) has a keen, discerning eye; he has an incisive way of developing and parsing stories as they gradually crystallize from the moments he captures, sometimes with a recessive contemplation, sometimes with an aggressive assertiveness, sometimes with raucous good humor.
("Chris supplied the sperm and Boy George the egg. I would be the aunt who taught it to walk"). Nonetheless, she clashed with what she says was Renshaw's lack of assertiveness and with Boy George's pop world laissez-faire attitude.
The physical assertiveness contrasted with a relatively short stature.
