The terminology of "complex skills" has not been well defined.

As students progress through the grades, they learn more complex skills, such as flips and aerial work.

Take, for example, learning to ride a bike, which in fact is quite a complex skill.

Listening is a difficult and complex skill at the best of times.

Women whose jobs are unskilled may actually be exercising complex skills to manage their everyday lives.

Overseeing so complex an organization demands political, financial and managerial skills that are hard to find in the best of times.

But there's one question neurons can't explain: why does it take so long to learn complex skills?

But in a world of word processing programs, correct spelling becomes secondary to other, more complex linguistic skills.

It costs more to test complex skills than basic ones.

What we need are complex social skills and the ability to participate.