Answer:
Scientific method , hypothesis and theory is the correct answer to this question.
Explanation:
Scientific method:- The scientific method involves creating and making predictions based on evidence about the environment. It is described by its dedication to previous scientific world analysis and seeks to be unbiased, crucial, skeptical, and practical.
Hypothesis:- A hypothesis is a prediction of what is to be found at the result of a research study and is a national model on the partnership between various different factors studied in the studies.
Theory:- Social theory looks to interdisciplinarity, incorporating feedback from various academic fields to shed light on these complicated problems, and can draw on concepts from such diverse fields as geology and art history.
The Ming Dynasty was established in 1368. It ruled from 1368 - 1644.
Answer: Demand characteristics.
Explanation:
Demand characteristics are the traits shown by participant of the research and experiment in which they behave according to the expectancy of researcher or experiment so that aim of the research can be accomplished .This creates biasness in research process and decrease validity of the experiment.
According to the question, John's positive reply to the situation where someone need helps if his/her car is broken displays the impact of demand characteristics .In actuality , he would probably not help the person by stopping and he just answered in positive manner to support the study.Thus, the reply is biased.