Answer: Wendy did not use random assignment
Explanation: Wendy's failure to randomly assign participants or subject to his research will pose a threat to the internal validity of his study. The internal validity of a study simply refers to the structure of an experiment and it's trustworthiness in establishing causal relationship between the applied treatment used a study and the observed outcome. Wendy's decision to ignore random assignment and opt for a manual assignment of subject to each treatment will pose a threat to the structure of his study and hence the establishment of a causal relationship between the treatment t and outcome of the study.
Social sciences educate people on how to engage in social interactions, including how to shape public policy, build networks, improve government transparency, and advance democracy. For many people all across the world, these issues are urgent, and finding solutions to them might significantly improve people's quality of life.
Social science is crucial because it helps to articulate a fact-based foundation on which to create a more successful governmental system and social issues. Social sciences educate people on how to engage in social interactions, including how to shape public policy, build networks, improve government transparency, and advance democracy. For many people all across the world, these issues are urgent, and finding solutions to them might significantly improve people's quality of life.
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Answer: It depends on what you mean because slavery is still alive today unfortunately in other countries. I'm assuming you mean African American slavery in the USA. Your answer would be from the 1600s - 1865. But at the same time, not every state started slavery at the same time. For instance, Georgia didn't start until the 1700s so it varies, but the first state was Massachusetts in 1619.
<span>The Whiskey Rebellion was a tax protest in 1791 during the
presidency of George Washington. It is also known today as the Whiskey
Insurrections. This “whiskey tax” was actually the first tax that the
government of America imposed on a domestic product. It angered the farmers
because in these regions, whiskey was also used as a medium of exchange of
goods. It was formed by the federal government and eventually became a law in
1791. The goal was to generate revenue to help reduce national debt and was
applied to all distilled spirits. Whiskey back then was the most famous
distilled beverage in the US and the excise tax that was added to it was known
to have greatly contributed to funding the war debt during the American
Revolutionary War. </span>