Answer:
Take a village and divide the population in two, with an experimental group that will be given a different diet, and a control group which will continue with their normal diet.
Explanation:
In experiment design, when we want to test whether or not certain factor actually has a real effect on a population, one of the best methods to follow is to split the population in two groups: an experimental group, where we will apply the treatment, and a control group, where either a placebo or no treatment at all will be applied. The advantage of having both an experimental and a control group is that this way we can ascertain with much more clarity whether a change in the indepent variable (the treatment) has an observable effect on the dependent variable (the effect on the population).
In our example, a practical manner to test whether longevity in Russian Georgian villages is due to genetic or dietary factors, is to take one of the villages, and split the population in two groups: an experimental group, that will be given a higher calorie diet, and a control group, which will continue to consume their normal low-calorie diet. Then we would track the differences in age expectancy over time. If after a long enough period of time there's a difference in longevity between both groups, in other words, whether one of them leads longer or shorter lives than the other, then we can conclude that our test has proven that diet has a definitive effect on their longevity. If there's no significant difference, then we can conclude that diet has no relevance and it's all due to genetics.
Economic prosperity in the 1950s and 60s meant that the newer generation could easily have settled lives and more wealth.
Explanation:
The post war generation grew up in an increasingly prosperous environment with a booming economy and willingness to settle with immovable property as they had quite a lot of wealth to spare.
More and more families began to have more free time and the rise of entertainment industry followed.
This was also followed by a high level of consumerism as the people had more money to spare so they started buying things from the money including stuff for their immovable assets.
<span>A parliamentary democracy does not have an individual executive but a presidential democracy does.
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Here is information that will help you to answer this question on your own.
1) Author- Taking into consideration the author of the website is a way to determine bias. For example, if the website/article is created by a person who is a well known advocate for a specific political party, you can assume that they have a bias.
2) Sources- The sources that a website uses are critical to determine whether or not it is bias. If the website only cites other sources with a similar view, you can assume their is some bias.
3) Source of funding- If a website is sponsored by an organization, there is most likely bias. This is because without funding, many websites would not exist.
