<u>Question 1</u>
The correct answer is: "The researchers administered a questionnaire to obtain their data without trying to influence an explanatory variable of the study".
An observational study is one in which the researcher observes the effect of a variable without manipulating the conditions that surround the exposure or the subjects who are exposed to it. In this example, he simply hands out questionaires to the 353 individuals that compose the sample drawn from the population of interest: 12-year old teenagers.
<u>Question 2</u>
The correct answer is: "a cohort study".
The researcher is interested on a population group where all the components share a common characteristic (12-year old) and therefore they all belong to the same cohort. Subsequenly, he evaluates the differences between the ones who have been exposed to the explanatory variable (having a video console in the bedroom) and those who have not.
Explanation:
If different student have different assignment to work with, there would be no chance of copying the assignment. Moreover, students will work on their own thereby inculcating in them work related ethics and self reliance. They can work independently with their own speed and approach.Thus, inculcating in the creativity and originality.
Where is the map the map will be useful
The feudal barons forced King John of England to sign the Magna Carta in an attempt to limit his powers by law and protect their rights. In a way, it was the world's very first written Constitution. ... It would inspire the Founding Fathers to draft a new document, the United States Constitution.
Seneca lake is the largest finger lake in the north east.
