Watching and recording others' behaviors in a systematic and objective manner is referred to as:a. Scientific observation. b. A correlational design. c. Cross-sectional research. d. A laboratory experiment.

scientific observation

Explanation:

A search of archival data is another way to conduct it

hello

question:

when would a new household be started?

a.when the oldest male died

b.when a man and a woman married

c.when the house could not hold everyone

d.when a child was born

answer: us d when a child was born

hope this have a great day and brainlest

answer; repetitive thoughts; ritualistic behaviors;