Answer:
c. Observational studies have both independent and dependent variables.
d. Observational studies can be used to test hypothesis.
Explanation:
Observational studies are ones in which a researcher makes observations about his thoughts and views. He observes the risk and other effects before actual test takes place. This is usually the initial phase of research where observations are made for suitability of certain things that are to be researched. There is initial feasibility test conducted to identify whether the further research process is beneficial or not.
Your answer :P > <span>Central Uplands, can u please make my answer the brainliest</span>
<span>The answer to this question is Economic
Relationships. Karl Marx is a philosopher, economist, and political theorist
who developed the concept of relations of production. Capitalist mode of
production is also known as the Marxist theory. According to Karl Marx,
relations of productions refers to the relationship to the capitalists and by
the workers. </span>
Answer:
c. would create a negative self-fulfilling prophecy
Explanation:
Douglas McGregor was an industrial psychologist, which in his theory analyzed how a negative vision (lack of responsibility, tendency to work as little as possible, low motivation, etc.) would imply a management style of authoritarian and controlling nature, tending to correct with a control external the low involvement of workers.
