The phrase "heighten confidence" is correct and usable in written English.
You can use it when discussing ways to boost someone's confidence or when talking about the effects of a particular event. For example, "Attending the workshop helped to heighten confidence in her public speaking abilities."
Moments later, Mr. Cosgrove claimed he didn't even know Mr. Rattner, which didn't exactly heighten confidence in his accusations.
Elliot Diringer said: "This cycle of commitment – tell us what you'll do, show us you're doing it, tell us what you'll do next – will heighten confidence that all countries are doing their fair share, and that will make it easier for each to do more.
"You have to have a heightened confidence to play that way," Billups added.
The jobless rate in the US has fallen sharply since QE was launched, against a backdrop of economic recovery and heightened confidence.
Heightened confidence levels decrease preference for information that supports individuals' personal beliefs.
But she is alerting her scientific colleagues that consumers of science prefer simple messages; have heightened confidence in biological evidence; and often confuse the brain for true explanation.
The result of such an experience, say advocates of career mentorship, is heightened confidence and a springboard into the business world.
Anxiety and excitement in the beginning of the year gave way to heightened confidence but increased fatigue and apathy towards the year's end.
When asked in the final workshop to sum up their learning from the course, responses included: confirmation of existing practice; heightened confidence; and increased ability to deal with death and dying residents.
It's a thin line between heightened self-confidence — the belief that you share something superior to the rest — and arrogance.
A strong and impartial legal system promotes an investment-friendly environment and heightens investors' confidence, while a weak law and order condition reflects institutional loopholes and high risk that eventually deters investment.
