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An experimenter is interested in the effect of a new drug on alertness. They gave half of their participants a stimulant, while the other half received a placebo. Participants’ alertness was measured using a standardised questionnaire that they completed both before they took the drug, and 15 minutes after taking it. What statistical test should be used to analyse the data collected from this study?
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the homework board is over there
>>>/hm/
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>>8526914
Apologies, I thought the Science board would be a good place to receive a reply from someone with scientific knowledge.
I also think you accidently linked me to where you get your kicks.
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>>8526913
I could be wrong as this is taking me back!
A one-way ANOVA is two or more variables, so here you have the experimental drug and a placebo.
The fact two questionaires are used does make me think that you will need a certain type of one-way though (repeated measures?)
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>>8526919
homework is explicitly against board rules
http://www.4chan.org/rules#sci2
the actual homework board is 'work safe requests'
>>>/wsr/
their sticky explicitly allows homework
>>>/wsr/1
that said, it's probably slower than /sci/
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>>8526940
Thanks, so technically if I had worded the request differently it would be allowed? This seems strange to me.
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>>8526913
Wilcoxon signed rank test
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>>8526971
It has to be one of the following:
Two-Way Repeated Measures ANOVA
Two-Way Independent ANOVA
One-Way Repeated Measures ANOVA
Two-Way Mixed ANOVA
I've pretty much ruled out Two-Way Repeated Measures ANOVA as the same group would receive different treatments.
A One-Way with repeated measures can also go as it involves three or more groups.
The defintions of the other two just seem rather vague that it could be either.
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