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Author Question: Jack believes that patrons in his bar will be more likely to leave a tip if the tip jar already has ... (Read 249 times)

abarnes

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Question 1

In which study would it be impossible to implement a double-blind procedure?

a study on the effects of a new pain medication
a study that tests whether yoga influences mood
an experiment that requires informed consent
an experiment that has a completely representative sample

Question 2

Jack believes that patrons in his bar will be more likely to leave a tip if the tip jar already has some money in it. To test this belief, he has the tip jar empty about half the time when a customer approaches the bar; the rest of the time he ensures there is at least $5.00 in the jar when a customer approaches. In Jack's experiment, which is the control group?

the patrons who see an empty tip jar
all the patrons who leave the bar without tipping
the patrons who see a tip jar that contains at least $5.00
all the patrons who leave a tip when they leave the bar


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Marked as best answer by abarnes on Oct 8, 2020

mmpiza

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