The research error described above is an example of selection bias.
Selection bias takes place when, from a population of interest, a group of individuals is selected in order to construct a sample but without a proper randomization. The result is a sample which is not representative of the underlying population.
According to the example, the target population of the research comprises all students but the sample only includes boys. Hence, selection has not been random because it followed a gender criteria, and the results obtained using it cannot be applicable to the whole population because they are affected by a selection bias.
Answer:
The electoral college consists of 538 electors, who choose the president of the United States. These electors are sent from the states, in proportion to their population, and in all states except for Maine and Nebraska, the electors are bound to the candidate that obtains the plurality of votes in the state.
Some presidents have been elected despite having lost the popular vote.
An example from the 19th century is Rutherford B. Hayes, who lost the popular vote to his contender, Samuel J. Tilden, but still won because he got 20 more electoral votes.
An example from the 21st century is the most recent election: Donald Trump lost the popular vote to Hillary Clinton, but won the electoral college (304 votes vs Clinton's 227 votes). In part this is because Trump won several crucial states by very small margins, for example, Michigan, Wisconsin and Pennsylvania.
This is the best I got: The best way to prove that slavery was in fact an inefficient market because the assumptions of Fogel and Engerman are weakly based and in some cases rather short-sighted.
Answer:
negative correlation
Explanation:
is show between education and fertility where educated woman tend to focus more on school and worry themselves in climbing a career ladder than woman that is more fertile and stay at home with no education or career to look forward too.In most cases they spend so much time making babies because they free time of doing nothing.
Answer:
Ego intergrity
Explanation:
Erikson described ego integrity as the acceptance of one’s one and only life cycle as something that had to be and later as a sense of coherence and wholeness As people grow older (65+ yrs) and become senior citizens, they tend to slow down their productivity and explore life as a retired person
The grandparents by spending time with their grandchikdren anc thinking and talking about goals and planning ways to kead a meanful life is them cultivating ego intergrity meaning they accepted their life as it is wanting to pass on what they thought they have made out of life. They explore life as having achieved all they can and seeing what they can pass on.
