To ensure that experimenter bias and research participant bias do not influence the results, Margaret should design a set of double-blind experiments.
<h3>What is research?</h3>
Research can be defined as the data or information collected by a researcher so as to draw or reach a conclusion.
Based on the information given she should design a set of double-blind experiments as the method will help to prevent any form of bias in her research results.
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Answer:
D. There is a correlation between weight and classroom performance.
Explanation:
Students who weight more are more likely to live in a family which possess abundant resources. This mean that Weight could be an indicator of proper nutrition and wealth.
Growing up in a house with more wealth and proper nutrition will enhance the brain's performance and expose the students with additional learning activities outside school that could make the result of their study become better.
Social Inequality in Karl Marx's conception - For him, social inequality was a phenomenon caused by the division of classes and by having, in these divisions, dominant classes, they used the misery generated by social inequality as an instrument to maintain the established dominion over dominated classes.
Social inequality, also called economic inequality, is a social problem present in all countries of the world. It is mainly due to poor income distribution and lack of investment in the social area, such as education and health.