PLEASE HELP ?
A. A parent visits her son's second-grade classroom to observe his behavior.
B. A zoo employee observes a new gorilla's interaction with the other gorillas in the enclosure.
C. A new employee sits beside a veteran employee to see what types of situations occur during a normal work day.
D. After receiving an anonymous tip, a supervisor observes his staff to see if any of them are downloading music while they should be working.
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A. A researcher watches the cars entering a mall parking lot and records the number of red cars.
B. A principal observes a teacher to see if the teacher completes all items on an evaluation checklist.
C. An undercover police officer joins a gang in order to observe its members and activities.
D. A day-care worker observes a particular child who has been accused of biting other children.