About ____% of ____ Carries the Y chromosome

Among the research methods in OB, which would most likely employ questionnaires and interviews?

a. case studies b. meta-analysis c. survey studies d. field studies e. laboratory studies

British psychoanalyst John Bowlby applied ___________ theory to understanding the human caregiver–infant relationship

A) social learning B) cognitive-developmental C) ethological D) sociocultural