Randomization is the process of making something random; in various contexts this involves, for example: generating a random permutation of a sequence (such as when shuffling cards); selecting a random sample of a population (important in statistical sampling
Answer:
There are many reasons to do applied research. The common theme is that every research project starts with a problem.
Explanation:
Should be the answer.
Answer:
True. The Revolutionary War started on April 19,1775, which is more than a year before the Declaration of Independence.
Answer:
An observational study of an association between two variables.
Explanation:
In the given scenario, it is an observational study of an association between two variables. The variables being :
- Explanatory variable (independant variable / predictor variable) may explain or influence changes in a response variable.
- Response variable (dependant variable) measures an outcome of a study.
Observational study observes individuals and records variables but doesn't attempt to influence the response (does not impose a treatment). It allows the researcher to directly observed the behavior of inteest rather than rely on the subject's self-descriptions (Survey) thus allowing the researcher to study the subject in its natural environment, thus removing the potentiallybased effect of the unnatural laboratory setting on the subject's performance.
