Perhaps the missing waves explained all the so-called psychological phenomena?

What psychological phenomena come up to the standard required for calling it knowledge?

Less known is Vygotsky's research on play, or children's games, as a psychological phenomenon and its role in the child's development.

Scientific studies have been done on religiosity as a social or psychological phenomenon.

An hypothesis is made about the evolutionary cause of a psychological phenomenon or phenomena.

"There's no deep psychological phenomenon at work here," he said.

Lighting up the witness was a common psychological phenomenon among prosecutors.

Seems to be a psychological phenomenon where women are more likely to forge those kind of relationships.

Midlife crisis is a psychological phenomenon, not a physical one.

The psychological phenomenon has frequently been portrayed in film and television.