Before attending the Sunday evening paseo in Mexican culture, it is common for the boy to wait outside the house of the girl in whom he is interested

In what type of research design are the same participants repeatedly observed or tested?

a) cohort b) longitudinal c) correlational d) cross-sectional

What famous chimpanzee learned to use approximately 100 signs, mostly involving requests for food?

a. Nim Chimpsky b. Washoe c. Ayumu d. Viki