21 hours in a week typically
Answer:variable interval
Explanation:
In operant conditioning, a variable-interval schedule is defined as that schedule in which a response is received after unpredicted time , because reinforcement has been administered in diffrent non fixed times. The response is slow and steady. Variable means non fixed time which means reinforcement can occur at any time , using various different time zone. Interval refers to time hence this means reinforcement is administered at various times.
Answer:
cross-sectional
Explanation:
Cross-sectional studies are used to measure the exposure and outcome of a population or study group at a specific point of time. It is used in different fields including developmental psychology, social science, and education, based on the interest area of research. It is an observational method of research because researcher cannot manipulate the variables in this type of research.
Answer:
the idea that one has shifted or changed the way he or she takes in knowledge.the philosophical study of nature ,origin,and limits of human knowledge.
Answer:
a minor change or addition designed to improve a text, piece of legislation, etc.
