Question

Please answer questions 3-10 Question 3 If you flip a coin to determine whether participants should...

Please answer questions 3-10

Question 3

If you flip a coin to determine whether participants should be in Group A or Group B for an experiment, you would be using the______________ procedure.

Answers:         

A.

representative sampling

B.

experimental assignment

C.

random assignment

D.

independent variable

Question 4

In a study testing the effectiveness of a new drug for treating anxiety, you are placed in the group that GETS the drug. This means that you are _____.

Answers:         

A.

in the control group

B.

in the experimental group

C.

in the placebo group

D.

in the correlation group

Question 5

Dr. Myers is conducting an experiment to examine the hypothesis “Clowns cause children to feel afraid”. She has 1 group of children meet with a clown, and 1 group of children meet with a normal adult. Then, after these encounters, she measures how afraid each child was was when meeting the new person, with the expectation that children would report being more afraid if they met with a clown than a regular adult. In this experiment, how afraid the children were would be considered the _______________ variable.

Answers:         

A.

independent

B.

dependent

C.

experimental

D.

confounding

Question 6

Which of the following would help reduce experimenter bias?

Answers:         

A.

Making participants feel at home during a study.

B.

Using random assignment.

C.

Using a correlational design instead of an experimental design.

D.

Double-blindness.

Question 7

Your friend Jack just read a scientific study that reported a positive correlation between Internet use and anxiety in the United States. Jack says this means that using the Internet causes anxiety. Which of the following is true?

Answers:         

A.

Jack is wrong - there may be a confounding variable causing the relationship between Internet usage and anxiety.

B.

Jack is correct - the Internet causes anxiety.

C.

Jack is wrong - the correlation between Internet usage and anxiety would have to be negative for him to be correct.

D.

Jack is correct, but only if the study was based on a representative sample.

Question 8

A group of preschool-age children are enrolled in a study that plans to follow them over the next 30 years in order to assess behaviors and other characteristics that may predict later development of schizophrenia. This is an example of a(n) ________ design.

Answers:         

A.

cross-sectional

B.

case study

C.

longitudinal

D.

survey

Question 9

Stan and Jenny are in a psychology course that requires them to repeat an experiment that other researchers have conducted in the past, in order to determine whether they produce the same results. This is called ________.

Answers:         

A.

falsifiability

B.

replication

C.

experimental control

D.

random sampling

Question 10

Which of the following is NOT a part of obtaining informed consent?

Answers:         

A.

explaining the hypothesis to the participants

B.

letting participants know that participation is voluntary

C.

explaining the possible risks of participating in the study

D.

letting the participant know that their data is confidential

Homework Answers

Answer #1

3.C

4.B

An experimental group refers to a group in an experiment that receives the variable being tested. The experimental group is compared to a control group, which does not receive the test variable. In this case, the experimental group gets the drug whereas the control group will not get the drug. In this way, experimental groups are used to find answers in an experiment.

5.B

A dependent variable refers to what you intend to measure in the experiment and what is affected during the experiment. It is called dependent because it "depends" on the independent variable.

6.C

7.A

8.C

9.A

Falsifiability refers to the capacity for some proposition, statement, theory or hypothesis to be proven wrong. That capacity is an essential component of the scientific method and hypothesis testing. In a scientific context, falsifiability is sometimes also referred to as testability.

10.A

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