Longitudinal research that calls for identifying participants in a study and following them into the future involves a

Alejandro was born into a family with high musical talent. Both his parents were professional musicians who encouraged and fostered his musical development

Throughout childhood he practiced the guitar whenever he could and eventually became a professional musician himself. Which of the following best describes Alejandro's phenotype? a. Alejandro's musical genes b. Alejandro's musical talent c. Alejandro's nurturing parents d. Alejandro's practice of the guitar

Conversion disorder was first studied by Freud; before then it was referred to as

a) la belle indifference. b) hysteria. c) hypochondriasis. d) Briquet's syndrome.