Suppose a researcher exposes participants to one of the following three scenarios: for a 20-minute period, they hear either classical music, rock music, or no music. Afterwards, the researcher measures the general mood of the participants.
The three scenarios refer to the ________ of the ________ variable.
A) measures; dependent
B) levels; dependent
C) conditions; experimenter
D) cause; independent
E) levels; independent
Question 2
A causal relationship means that ________.
A) it is virtually impossible to determine the cause of either variable
B) a decrease in one variable is related to an increase in another variable
C) an increase in one variable is related to a decrease in another variable
D) an increase in one variable is related to an increase in another variable
E) changes in one variable causes changes in another variable
A killer whale plays with a ball of ice, soon after a researcher had thrown a snowball at the whale.
Researchers must inform potential participants of a study's procedures so that consent may be o
Voltmeter showing the battery voltage when the headlights were on (engine off) for one minute.
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