The correct answer is B) observation.
Among the four methods, the method of data collection that is involved when an individual counts the number of vehicles passing designated locations on the Los Angeles freeway system is observation.
When researchers use the method of observation to collect information, this means that a person acts as the observer, he or she is physically in the location to observe the phenomena. In this case, an individual is placed in a specific part of the freeway to observe and count the number of vehicles that cross the designated location.
Answer: SAMPLE.
Explanation: He obviously cannot study every 12th grader, so instead he will select a smaller SAMPLE of seniors to study.
Sample in research methodology is defined as a subset of a population selected for measurement, observation or questioning, to provide statistical information about the population. A sample is referred to as an unbiased estimator of a population.
Answer:
The answer is unconscious and preconscious, respectively.
Explanation:
The unconscious usually holds unpleasant or unacceptable ideas which are not accesible by conscious thought. Some psychoanalists suchs as Sigmund Freud used dream analysis to access these ideas.
The preconscious contains ideas that can be brought to awareness easily, often at very specific situations (e.g. an answer for an exam).
