Mortality rates were chosen for the studies because they are assumed to be free of certain biases that could affect the results.

As an instructor, I have certain biases, especially against stupidity.

He seems excited, but not showing a certain bias either way

And my point is, they betray a certain bias.

Pardon me, but perhaps you have a certain bias.

His programs, however, have shown a certain bias toward more imaginative members of the current European avant-garde.

It is possible that certain basic human epistemic biases are projected onto the material under scrutiny.

There's a certain bias against us because we're a public school.

However, such retrospective studies were subject to certain biases that may have affected the results.

These explanations are fascinating in themselves, but nevertheless incorporate a certain bias.