The researchers were most concerned about External events.
<h3><u>Explanation: </u></h3>
Quasi-experimental designs are different from true experimental designs. They resemble the experimental research but it is not the real one. There are various types of quasi-experiment design, one of the important designs is the pretest and posttest design which is discussed in the above scenario.
The most likely reason for the experimental effect is based on selection bias. Self-fulfilling Prophecy & Instrument Decay might be the potential cause of the internal validity that is linked with the experiment done by the staff.
The United States has a mixed economy, A mixed economic system protects private property and allows a level of economic freedom in the use of capital, but also allows for governments to intervene in economic activities in order to achieve social aims and for the public good.
Answer:
Food surpluses often go to wealthy industrialized nations.
Answer: Globalization and the attendant concerns about poverty and inequality have become a focus of discussion in a way that few other topics, except for international terrorism or global warming, have. Most people I know have a strong opinion on globalization, and all of them express an interest in the well-being of the world's poor. The financial press and influential international officials confidently assert that global free markets expand the horizons for the poor, whereas activist-protesters hold the opposite belief with equal intensity. Yet the strength of people's conviction is often in inverse proportion to the amount of robust factual evidence they have.
Explanation:
The answer is b
-7 minus 7 is zero showing that they have the same absolute value
