Which of the following is not a physical property?

An experimenter is examining the relationship between age and self-disclosure. a large sample of participants that are 25 to 35 years old and participants that are 65 to 75 years old are compared, and significant differences are found with younger participants disclosing much more than older people. the researcher reports an effect size of .34. what does this mean

Erikson's theory of personality grants more power to the than freud had allowed.

What was the social class pyramid during the civil war?