– PSY3211 – Research Methods and Data Analysis in Psychology Exam 2

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Question 1

1 / 1 pts
What would be your preferred measure of central tendency if you had the following data: $32,400; $42,500; $47,250; $49,570; $145,850?

Mean

Median

Mode

Weighted mean
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Question 2

1 / 1 pts
Which of the following populations is used most often in human psychological research?

patients with schizophrenia

patients with depression

the general population

college students

Question 3

1 / 1 pts
Which of the following symbols represents the individual score?

X

n

N

Σ

Question 4

1 / 1 pts
A researcher conducts a study on the effectiveness of a new drug to alleviate anxiety. Participants are given either the drug or a sugar pill, and they donâ t know which they are receiving. Furthermore, the experimenter dispensing the pills does not know which pill he is giving out. This experiment is known as a _________ experiment.

correlational

double-blind

single-blind

response-set

Question 5

1 / 1 pts
A researcher believes that male participants will be less willing to discuss their relationship problems than female participants, and thus he makes males extra comfortable when interviewing them by nodding his head and smiling. At the end of the study, he finds that men are actually very open to talking about their relationships, even more so than women. What is the biggest problem with his findings?

There are ethical issues in that the researcher was not open about the true purpose of the study

Experimenter expectancies are present

The experimenter is not focusing enough on fixing relationship problems, only hearing about them

There may not be enough female participants in the study to draw any valid conclusions

Question 6

1 / 1 pts
Which of the following is NOT true about the running head?

The running head must be 50 characters or less, including spaces

The running head can use different phrases than the title.

The running head should be typed in the upper right hand corner of every page.

The h in running head is lowercase.

Question 7

1 / 1 pts

For questions 17 through 20, use the following table

Condition ACondition BCondition CCondition D
95121824
13181722
18231922
14181826
17201716

Which two conditions have the same median?

Condition A and Condition B

Condition B and Condition C

Condition C and Condition D

Condition D and Condition B

Condition D and Condition A

Question 8

1 / 1 pts

For questions 17 through 20, use the following table

Condition ACondition BCondition CCondition D
95121824
13181722
18231922
14181826
17201716

Which condition has a mean of 20.4?

Condition A

Condition B

Condition C

Condition D

None of the conditions have a mean of 20.4

Question 9

1 / 1 pts
“Features of the experiment that inadvertently lead participants to respond in a particular manner” is a definition of

experimenter bias.

role attitude cues.

volunteer bias.

demand characteristics.

Question 10

1 / 1 pts
If  Σ X  4,390 and n = 4, what is M?

17,560

.0100

1097.5

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Question 11

1 / 1 pts

For questions 17 through 20, use the following table

Condition ACondition BCondition CCondition D
95121824
13181722
18231922
14181826
17201716

Which condition has a mode of 22?

Condition A

Condition B

Condition C

Condition D

None of the conditions have a mode of 22

Question 12

1 / 1 pts
Which of the following BEST depicts the structure of an introduction section?

The introduction should contain primarily opinions in the middle paragraphs and facts in the first and last paragraphs.

The last paragraph of the introduction should provide all the background information on your topic.

The introduction should begin broadly and then narrow to a specific focus.

The introduction should begin with a specific focus and end broadly.

Question 13

1 / 1 pts
All of the following are issues with animal research involving animals bred in a breeding colony, but which one might decrease the external validity of your study?

Since all animals are bred and raised in the same environment, they may differ from animals bred in a different colony

Animal activists may find it unethical to use animals in research

Working with animals requires IRB protocols that safeguard the well-being of the animals, making it impossible to perform some experiments on them

All of the above can decrease the external validity of a study

Question 14

1 / 1 pts
What is the formula for computing the mean?

Σ X + n

Σ Y / X

Σ X / n

Σ N + y

Question 15

1 / 1 pts
Participants in an experiment figure out that the study is about group size and helping behavior. They know that some people are in groups of five while others are in groups of three. The demand characteristics in this study are operating as ________ variables.

independent

dependent

extraneous

annoyance

Question 16

1 / 1 pts

Which of the following is an APA format error in the journal article reference below?

Hunter, A., Laursen, S. L., & Seymour, E. (2006) Becoming a Scientist: The Role of Undergraduate Research in Students’ Cognitive, Personal, and Professional Development. Science Education, 91, 36-74. doi: 09178-367PV

The volume number (91) should not be italicized.

The page numbers should be italicized.

Only “Becoming” and “The” should be capitalized in the title.

There are no errors in the reference above

Question 17

1 / 1 pts
The _______ the within-group variability, the _______ the number of participants the researcher will need.

greater; fewer

lower; greater

greater; greater

None of the above.

Question 18

1 / 1 pts
Why will a researcher need more participants when there is a high degree of within-group variability?

The scores are spread out within the groups, which makes it more difficult to see differences between groups.

The scores are clustered together within the groups, which makes it more difficult to see differences between groups.

The scores are spread out within the groups, which makes it easier to see differences between groups.

none of the above

Question 19

1 / 1 pts
Which of the following in-text citations (e.g. something you would find in the introduction of a scientific research report) is CORRECT in APA format?

Smith and Jones (2000)

Smith & Jones, 2000

(Smith and Jones, 2000)

Smith & Jones (2000)

IncorrectQuestion 20

0 / 1 pts

For questions 17 through 20, use the following table

Condition ACondition BCondition CCondition D
95121824
13181722
18231922
14181826
17201716

For which condition would you NOT want to use the mean?

Condition A

Condition B

Condition C

Condition D

You would want to use the mean in all conditions