AP PSYCHOLOGY

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SENSATION AND PERCEPTION

VISION SENSORY AND PERCEPTUAL PROCESSING

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Jessie is concerned about how tired his classmates seem. He created a drink that he thinks will boost their energy. He recruits 100 classmates with a history of tiredness. He has 50 of them drink his new special energy drink. The other 50 drink a beverage that looks like the special energy drink, but is just water and food coloring. Both groups were told that they were getting the special drink that would boost energy. After 2 hours, 30 classmates in the first group reported having more energy and 8 classmates in the second group reported having more energy.What is the independent variable?
A
Amount of energy
B
Special energy drink
C
The food coloring
D
None of the above
Explanation: 

Detailed explanation-1: -The type of soda – diet or regular – is the independent variable. The level of blood sugar that you measure is the dependent variable – it changes depending on the type of soda.

Detailed explanation-2: -You can see that one way to look at variables is to divide them into four different categories ( nominal, ordinal, interval and ratio).

Detailed explanation-3: -There are three main variables: independent variable, dependent variable and controlled variables.

Detailed explanation-4: -The dependent variable is the variable that is being measured or tested in an experiment. 1 For example, in a study looking at how tutoring impacts test scores, the dependent variable would be the participants’ test scores since that is what is being measured.

There is 1 question to complete.
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