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.
There is the bully. These people may be bullying the person right in front of them or behind their backs. They are the main abuser.
There is the one who is being bullied. These people are being picked on and abused. They do not fight back, if someone does fight back it's not necessarily bullying. They are the main victim.
There is the assister. These people don't start the bullying but they also bully the victim. They could encourage it or join it.
There are the reinforcements. They don't directly get involved with bullying, but are like an audience. They support the bully and cheer them on.
There are the outsiders. They stay away from the situation and do not defend the victim or support the bully.
There are the defenders. They come to the victim's defense and speak up for them, comfort them. They support the one who is being abused.
A progressive tax is a tax which causes the situation that the rich contribute more to the finances of the country than the poor - this means that the more one earns, the more one also pays in taxes. The correct answer is: d. Under a progressive tax, those with more income shoulder more of the tax burden.
Answer:
The U.S. Navy's decisive victory in the air-sea battle (June 3-6, 1942) and its successful defense of the major base located at Midway Island dashed Japan's hopes of neutralizing the United States as a naval power and effectively turned the tide of World War II in the Pacific.
Explanation:
The illegal smuggling caused economic hardship in the Portuguese empire. During the 8th and 9th Centuries, tobacco became the major product in the Portugal. Tobacco’s importance as a commercial product had in fact grown steadily after 1620, and by the early 1700s, the monopoly on its sale had become one of the country’s most precious sources of income.
Together with spices, tobacco became the principle item of exchange for products from the Far East and for slaves taken from the coast from the West Africa.