Happy couples tend to make internal attributions for their partner's positive behavior

Joanna, at adulthood, is finding that the size of newspaper print is getting smaller. To compensate, she holds the paper farther away from her eyes than when she was younger. What is a more likely explanation for her need to move the paper?

She has grown farsighted. She has grown nearsighted. She suffers from presbycusis. She suffers from dementia.

The word correlation could often be used as a synonym for _____________

a) validity b) reliability c) variable d) relationship