0 involving people or organizations that choose to take part in an activity, rather than being chosen by someone else: --
Not only is it a limited population that becomes involved, but the individuals are not randomly self-selected.
Thus, it is unlikely that those more vulnerable to depression self-selected out of the study.
Farmers were chosen either by farmers' organizations as experts or were self-selected.
The participants in the above studies were self-selected and a selection bias cannot be excluded.
Testimony concerning spectral appearance was limited to these self-selected groups who were enabled by a ' special sight ' to see what to others was invisible.
The stimuli in all three experiments were presented via headphones at a self-selected comfortable level using a personal computer.
Finally, we may have sample selection problems, whereby households relying on coping sources are a self-selected group with a different water demand structure.
Usage critics are no more self-selected than novelists or biographers or drama critics.
