15937630
Beschreibung
Quiz von Michael Jardine, aktualisiert more than 1 year ago
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Erstellt von Michael Jardine
vor etwa 6 Jahre
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Frage 1
Frage
Non-independence causes:
Antworten
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Pseudoreplication
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Confounding
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An bloody uprising of the oppressed population to overthrow the proverbial [or literal] shackles of their masters!
Frage 2
Frage
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.
Antworten
- True
- False
Frage 3
Frage
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.
Antworten
- True
- False
Frage 4
Frage
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:
Antworten
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Confounding
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Pseudoreplication
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Non-independence
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None of the above
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