Two questions: 1) Which of the following statements about experiments is true? a
ID: 3501041 • Letter: T
Question
Two questions:
1)
Which of the following statements about experiments is true?
a) Good experiment includes systematic variation for one or more hypothesized causal factors
b) A good experiment includes atleast 3 groups: 1 control and 2 experimental groups
c) A good experiment should include a potentially confounding factor in at least one group
d) A good experiment should only include replication if the hypothesis has never been tested before
2) Why is replication important to consider when designing an experiment?
a) Replication allows you to test multiple independent variables in the same experiment
b) Replication increases confidence that your results apply more widely, not just to specific cases
c) Replication is neccesary to introduce systematic variation in the experiment
d) Replication increases the chances that a rare result leads to an erroneous conclusion
Explanation / Answer
Question 1
Answer: A. A good experiment include systamatic variation for one or more hypothesized casual factor
Explanation:
An experiment is controlled procudure designted to test hypothesis.when one experiment conducted to test the hypothesis , large viable statistical analysis is necessary.it is totally systematic process. Firstly two groups have selected one controll group other expriment group where treatment is given. It's helps to check one or hypothesis by manupulating independent variable and it is based on casual factor.
Question-2
Answer-C , Replication is increase confidence that your result apply more widely , not just specific cases.
Explanation:
Replication is very play prominent role specially in sceince research . The replication reduce variablity in experimental research. Stop of variablity is incresed their significance and confidence level.Replication helps to make consistent in result and more reliable. So finally , resarcher draw conclusion about of experiment and it's have wide aplication.
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