15937630
Descrição
Quiz por Michael Jardine, atualizado more than 1 year ago
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Criado por Michael Jardine
aproximadamente 6 anos atrás
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Questão 1
Questão
Non-independence causes:
Responda
-
Pseudoreplication
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Confounding
-
An bloody uprising of the oppressed population to overthrow the proverbial [or literal] shackles of their masters!
Questão 2
Questão
Pseudoreplication = “The use of inferential statistics to test for treatment effects with data from experiments where either TREATMENTS ARE NOT REPLICATED (though samples may be), or REPLICATES ARE NOT STATISTICALLY INDEPENDENT.”
True or false: An experiment on a sediment core which has been stratified into 5 sub-samples (n=5) avoids pseudoreplication as measurement bias has eliminated.
Responda
- True
- False
Questão 3
Questão
Pseudoreplication = “The use of inferential statistics to test for treatment effects with data from experiments where either TREATMENTS ARE NOT REPLICATED (though samples may be), or REPLICATES ARE NOT STATISTICALLY INDEPENDENT.”
True or false: An experiment on a sediment core which has been split into 5 sub-samples falls into pseudoreplication as only one sediment core (n=1) is being used.
Responda
- True
- False
Questão 4
Questão
Experiment: A drug trial using mice is investigating whether drug [x] has an effect on heart rate.
A positive effect is found, but this could be because the injection itself causes tachycardia.
This in an example of:
Responda
-
Confounding
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Pseudoreplication
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Non-independence
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None of the above
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