PSYCH 2300 CH 3&4 EXAM QUESTIONS AND
CORRECT ANSWERS
The Neilsen Company releases a report that describes how much each television show
is watched in the United States.
T or F: This an example of an association claim. - answer false
Researchers are investigating whether middle school children differ significantly in their
critical-thinking ability by measuring the differences between sixth, seventh, and eighth
graders. Each student at Tannenbaum Middle School receives the same intelligence
test, and then the students' scores are compared.
T or F: In this study scores on the intelligence test is an example of an independent
variable. - answer false
Which validity is the LEAST relevant when evaluating frequency claims?
-Internal
-External
-Statistical
-Construct
-All choice options are equally relevant when evaluating frequency claims - answer
internal
A scientist is interested in the electrical properties of a particular ion channel. More
specifically the scientist is asking the research question what is the rate at which the
receptor allows ions (charged particles) to pass through a membrane when the channel
is open.
This experiment could be done in cell culture but the scientist decides to use rats as
subjects. Assume the number of rats used was determined with a power analysis and
she attempts to reduce harm to the animals by anesthetizing them during the
procedure.
This scientist is most likely violating which principle of the animal care guidelines.
-Restoration
-Refinement
-Replacement
CORRECT ANSWERS
The Neilsen Company releases a report that describes how much each television show
is watched in the United States.
T or F: This an example of an association claim. - answer false
Researchers are investigating whether middle school children differ significantly in their
critical-thinking ability by measuring the differences between sixth, seventh, and eighth
graders. Each student at Tannenbaum Middle School receives the same intelligence
test, and then the students' scores are compared.
T or F: In this study scores on the intelligence test is an example of an independent
variable. - answer false
Which validity is the LEAST relevant when evaluating frequency claims?
-Internal
-External
-Statistical
-Construct
-All choice options are equally relevant when evaluating frequency claims - answer
internal
A scientist is interested in the electrical properties of a particular ion channel. More
specifically the scientist is asking the research question what is the rate at which the
receptor allows ions (charged particles) to pass through a membrane when the channel
is open.
This experiment could be done in cell culture but the scientist decides to use rats as
subjects. Assume the number of rats used was determined with a power analysis and
she attempts to reduce harm to the animals by anesthetizing them during the
procedure.
This scientist is most likely violating which principle of the animal care guidelines.
-Restoration
-Refinement
-Replacement
