Hello. This question is incomplete. The full question is:
"Dr. Parrett is a sports psychologist for a large Southern university. The provost and chancellor have asked him to examine the relationship between athletic performance and academic stress at the university. For example, is it the case that the most talented athletes experience the greatest concern over their grades? The provost and chancellor have made it clear to Dr. Parrett that they want a large amount of external validity in the study. He has valid and reliable measures of both athletic performance and academic stress. He knows that he does not have the time or the money to study the entire population of interest.
Imagine that Dr. Parrett wants to use a nonrepresentative sampling technique. Name the three types of nonprobability sampling and explain how each one could be used by Dr. Parrett."
Answer:
The four types of nonprobability sampling are convenience sampling, purposive sampling, quota sampling, and snowball sampling.
Explanation:
Convenience sampling: Allows a selection to be made of a small sample of the target population of the research. This sample is made up of individuals who are available and accessible to research and not through statistical criteria. Regarding the question above, Dr. Parrett can select the athletes he knows and who would like to participate in the research.
Purposive sampling: It allows the sample to be controlled whenever a certain manipulation is possible to generate expected and known results. In the case of the question above, Dr Parrett can search for specific athletes, with characteristics that will generate an expected result in the research.
Snowball sampling: Allows the individuals who make up the sample to invite other individuals to compose the sample, who in turn can invite other individuals. In the case of the question above, Dr. Parret can invite the athletes he wants and ask them to call friends to participate in the survey as well.
Sampling quota: Allows the individuals who will compose the sample to be selected due to their characteristics and qualities. Regarding the question above, Dr. Parrett could only summon athletes with high marks.
Yes, it is true.
It is called confiscating.
<span>The world controller orders the hatchery to create embryos with different intelligence levels to fit into different sections of society. Alphas require a lot of intelligence to perform complex activities like Bernard's job of overseeing the night-time conditioning of the young. By comparison, the lowest cast, Epsilons, are deprived of oxygen during embryonic formation and given alcohol to ensure they will have very little intelligence and thus be fit for the lowest jobs in society.</span>
Answer:
1. gradually becomes stronger
Explanation:
The gravitational force between two particles increases as the particles come closer together. Therefore, as the cloud becoming small and particles moving closer together, the force of gravity becomes stronger. This will accelerate the collapse as long as no other force resists it. This is the case where the early stages of the collapse before the internal gas pressure builds up. when the gas pressure builds up, the outward push of the pressure can counteract the inward pull of gravity, which is why the cloud after an unspecified period of time it stops contracting.
