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Author Question: A difference between the performance of an experimental and a control group may be caused by: a. ... (Read 42 times)

lracut11

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on: Jun 20, 2018
A difference between the performance of an experimental and a control group may be caused by:
 
  a. the independent variable.
  b. the dependent variable.
  c. a confounding variable.
  d. either the independent or a confounding variable.

Question 2

In an experiment to study the effects of caffeine on performance, an experimenter asked the male students in an introductory psychology class to drink two regular Pepsis before a test and the female students to drink two caffeine-free Pepsis. She then compared performance of the two groups on the test. A confounding variable in this study is:
 
  a. whether participants had studied for the test.
  b. the type of drink.
  c. the gender of the participants.
  d. the amount of caffeine in the Pepsi.


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sultana.d

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Reply #1 on: Jun 20, 2018
Answer to Question 1

D

Answer to Question 2

C


lracut11

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Reply 2 on: Jun 20, 2018
Wow, this really help

parshano

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

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