<span>Students with big smiles had the
longest lifespan, followed by those with partial smiles, and then by those with
no smiles.</span>
An examination by specialists at Wayne College in Michigan,
America proved that being happy can extend your life span. They arrived at
their decisions by examining 230 pictures of baseball players from the 1952
baseball enroll. Of the 184 players who
had since passed away, those in the "no grin" area experienced a
normal of 72.9 years while the "incomplete grin" bunch lived to
around the age of 75.
Those with the most stretched out smiles experienced a
normal of 79.9 years – an entire seven a greater number of years than their
gloomy partners.
Answer:
The answers are:
a. dependent
b. independent
c. test
d. control
Explanation:
In scientific research, investigations are done to study whether certain factors change while changing others, and the following terms are associated with scientific research:
a. dependent variable: These are factors or outcomes that are being investigated in a research experiment, and they are not under the direct control of the researcher. They are factors that vary as a result of other changes made in the process. In our example, the heart rate and blood pressure are proposed to vary with the type of film watched hence these factors are dependent variables.
b. independent variable: Independent variables are variables that are under the direct manipulation of the researcher, and the predetermined variation of these variables cause certain effects on the dependent variables. In our example, the type of film is the independent variable, because the researcher has complete control over the type of film watched.
c. Test group: These are the group of participants/individuals in research, who will potentially be affected by the change in the dependent variable to cause an effect that deviates from the normal. In our example, the group that views the violent film is the test group, because there is a tendency that they might have altered heart rate and blood pressure as a result of the type of film viewed.
d. control group: The control group is the group of individuals whose effects at the end of the experiments will serve as baseline effects, to serve as a means of measuring the magnitude of variation in the test group. These groups serve to eliminate any other effects that might cause similar changes as the factor being investigated in all test participants.
Answer:
Race logic
Explanation:
This is an example of a process known as "race logic." This occurs when different people are treated differently, or their actions are explained differently, based on the race that they belong to. In this example, the same accomplishments and behaviour are understood differently in white and black people. This type of logic is an example of a bias that gets in the way of equality.
If you mean colonies by the early thirteen, then direct democracy is a big one.
Direct democracy is where people vote for the selected representatives (people who represent their own kind of people with the same views)
