PSYC 515 Quiz Review Concepts

PSYC 515 Quiz: Review Concepts

Covers the Learn material from Module 1: Week 1.

1. I have read and understand the Academic Honor policy as outlined in the Online Honor Code for Liberty University Online. I agree to abide by this policy and that the work submitted herein is my own.
2. Scenario: Suppose participants complete an experiment where ads are presented subliminally during a task (e.g., Pepsi ads are flashed at a very fast rate during movie ads). Participants are then given a recognition test for images of the ads, where two images are presented and participants must choose which one of the two was presented earlier. Both men and women (18 of each gender) participate in the study, and the researcher predicts that recognition accuracy (0 — 100%) will differ based on gender. Question: What is the independent variable in this scenario?
3. Scenario: Suppose participants complete an experiment where ads are presented subliminally during a task (e.g., Pepsi ads are flashed at a very fast rate during movie ads). Participants are then given a recognition test for images of the ads, where two images are presented and participants must choose which one of the two was presented earlier. Both men and women (18 of each gender) participate in the study, and the researcher predicts that recognition accuracy (0 — 100%) will differ based on gender. Question: What is the most appropriate statistical test to conduct given this scenario?
4. Scenario: Suppose participants complete an experiment where ads are presented subliminally during a task (e.g., Pepsi ads are flashed at a very fast rate during movie ads). Participants are then given a recognition test for images of the ads, where two images are presented and participants must choose which one of the two was presented earlier. Both men and women (18 of each gender) participate in the study, and the researcher predicts that recognition accuracy (0 — 100%) will differ based on gender. Question: Which of the following best describes this scenario?
5. Scenario: Suppose participants complete an experiment where ads are presented subliminally during a task (e.g., Pepsi ads are flashed at a very fast rate during movie ads). Participants are then given a recognition test for images of the ads, where two images are presented and participants must choose which one of the two was presented earlier. Both men and women (18 of each gender) participate in the study, and the researcher predicts that recognition accuracy (0 — 100%) will differ based on gender. Question: What is the dependent variable in this scenario?
6. Scenario: A researcher wants to know whether a hard copy of a textbook provides additional benefits over an e-book. She conducts a study where participants are randomly assigned to read a passage either on a piece of paper or on a computer screen. After a distractor task lasting 30 minutes, the participants are tested for their comprehension of the passage with a multiple-choice test containing 10 questions about their passage. Comprehension was scored using percent correct (0 — 100%). The researcher predicts that those randomly assigned to read the passage on a piece of paper will remember significantly more than those who read the passage online. Question: What is the independent variable in this scenario?
7. Scenario: A researcher wants to know whether a hard copy of a textbook provides additional benefits over an e-book. She conducts a study where participants are randomly assigned to read a passage either on a piece of paper or on a computer screen. After a distractor task lasting 30 minutes, the participants are tested for their comprehension of the passage with a multiple-choice test containing 10 questions about their passage. Comprehension was scored using percent correct (0 — 100%). The researcher predicts that those randomly assigned to read the passage on a piece of paper will remember significantly more than those who read the passage online. Question: Which of the following best describes the research design?
8. Scenario: A researcher wants to know whether a hard copy of a textbook provides additional benefits over an e-book. She conducts a study where participants are randomly assigned to read a passage either on a piece of paper or on a computer screen. After a distractor task lasting 30 minutes, the participants are tested for their comprehension of the passage with a multiple-choice test containing 10 questions about their passage. Comprehension was scored using percent correct (0 — 100%). The researcher predicts that those randomly assigned to read the passage on a piece of paper will remember significantly more than those who read the passage online. Question: Which of the following best describes the scenario?
9. Scenario: A researcher wants to know whether a hard copy of a textbook provides additional benefits over an e-book. She conducts a study where participants are randomly assigned to read a passage either on a piece of paper or on a computer screen. After a distractor task lasting 30 minutes, the participants are tested for their comprehension of the passage with a multiple-choice test containing 10 questions about their passage. Comprehension was scored using percent correct (0 — 100%). The researcher predicts that those randomly assigned to read the passage on a piece of paper will remember significantly more than those who read the passage online. Question: What is the dependent variable in this scenario?
10. Scenario: A researcher wants to see whether ESP abilities in psychics differ based on environment. Thus, the researcher has psychics predict card suits in both a fortune- telling environment (e.g., low lighting, candles, a crystal ball), and in a standard lab environment. They complete 100 trials of the task in each environment, with the environment type counterbalanced between participants. All 30 psychics completed the card prediction task in both environments. Accuracy rates are compared. Question: Which of the following best describes the scenario?
11. Scenario: A researcher wants to see whether ESP abilities in psychics differ based on environment. Thus, the researcher has psychics predict card suits in both a fortune- telling environment (e.g., low lighting, candles, a crystal ball), and in a standard lab environment. They complete 100 trials of the task in each environment, with the environment type counterbalanced between participants. All 30 psychics completed the card prediction task in both environments. Accuracy rates are compared. Question: What is the most appropriate statistical test to conduct given this scenario?
12. Scenario: A researcher wants to see whether ESP abilities in psychics differ based on environment. Thus, the researcher has psychics predict card suits in both a fortune- telling environment (e.g., low lighting, candles, a crystal ball), and in a standard lab environment. They complete 100 trials of the task in each environment, with the environment type counterbalanced between participants. All 30 psychics completed the card prediction task in both environments. Accuracy rates are compared. Question: What is the independent variable in this scenario?
13. Scenario: A researcher wants to see whether ESP abilities in psychics differ based on environment. Thus, the researcher has psychics predict card suits in both a fortune- telling environment (e.g., low lighting, candles, a crystal ball), and in a standard lab environment. They complete 100 trials of the task in each environment, with the environment type counterbalanced between participants. All 30 psychics completed the card prediction task in both environments. Accuracy rates are compared. Question: What is the dependent variable in this scenario?
14. Scenario: Does studying with background music (X) improve test scores (Y)? Students self-reported whether or not they listened to background music (“Yes” or “No”), and the last score the earned on an exam (0-100%). Question: What is the most appropriate statistical test to conduct given this scenario?
15. Scenario: Is there a relationship between GPA (X) and amount of time spent playing video games (Y)? A researcher quantified GPA as self-report on a scale of 0 — 4.0 and had students self-report the number of hours spent playing video games per week. Question: What is the scale of measurement for variable X in this scenario?
16. Scenario: Is there a relationship between mood (X) and outside temperature? A researcher quantified mood (X) by having participants rate themselves each day as being in a “good” or “bad” mood. The outside temperature (Y) was recorded as the highest temperature reached on a particular day. Question: What is the most appropriate statistical test to conduct given this scenario?
17. Scenario: Is there a relationship between test scores (X) and presentation type (Y)? Test scores were quantified using the % correct. Students were able to choose the presentation type of their test — they could take the test online or in-person. Question: What is the scale of measurement for variable Y in this scenario?
18. Scenario: Is there a relationship between amount of time at a job (X) and productivity (Y)? The researcher quantified amount of time at a job by ranking the employees from those who had been there the least amount of time to the most. The researcher quantified productivity as rating the employees from “best” to “worst”. Question: What is the scale of measurement for variable X in this scenario?
19. Scenario:Istherearelationshipbetweenanxiety(X)andbeliefinGod(Y)? A researcher had participants self-report their anxiety on a likert scale ranging from 1 = low to 7 – high. Participants also reported their belief in God using a likert scale ranging from 1 = non-existent to 7 = strong belief. Question: What is the scale of measurement for variable Y in this scenario?
20. Scenario: Is there a relationship between number of hours studied (X) and final exam scores (Y)? Question: What is the scale of measurement for variable Y in this scenario?
21. If a teacher wants to assess whether there is a relationship between males and females on test performance, the most appropriate statistical test would be:
22. Which of the following correlation coefficients is the strongest?
23. If a teacher wants to assess whether there is a difference between males and females on test performance, the most appropriate statistical test would be:
24. If interested in examining the relationship between happiness (measured using a Likert scale), and gender (male/female), which graph is most appropriate as taught in 510/515?
25. The alpha level used most commonly in the social sciences (and always in this class) is:
26. If interested in the relationship between height (in inches) and weight (in pounds), which test would be most appropriate?