Liberty University PSYC 515 Wk 1 - Quiz 1 - Review Concepts Test Results 2023.
Liberty University PSYC 515 Wk 1 - Quiz 1 - Review Concepts Test Results 2023. Score for this quiz: 50 out of 50 Submitted Jun 29 at 11:39am This attempt took 34 minutes. Question 1 0 / 0 pts 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. Yes No No answer text provided. No answer text provided. Question 2 2 / 2 pts 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 null hypothesis for this scenario? There is no difference in recognition accuracy based on gender. There is a difference in recognition accuracy based on gender. Males have higher recognition accuracy than females. Males have lower recognition accuracy than females. IncorrectQuestion 3 0 / 2 pts 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 the research design? Descriptive Predictive Quasi-experimental Experimental Question 4 2 / 2 pts 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? It is one-tailed; directional. It is two-tailed; non-directional. It is one-tailed; non-directional. It is two-tailed; directional. Question 5 2 / 2 pts 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 research / alternate hypothesis for this scenario? There is no difference in recognition accuracy based on gender. There is a difference in recognition accuracy based on gender. Males have higher recognition accuracy than females. Males have lower recognition accuracy than females. Question 6 2 / 2 pts 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 most appropriate statistical test to conduct given this scenario? Independent samples t-test Correlated groups t-test Pearson's r correlation Phi correlation Question 7 2 / 2 pts 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: As taught in 510/515, what is the most appropriate graph to illustrate this scenario? Scatterplot Clustered bar graph Bar graph Box plot IncorrectQuestion 8 0 / 2 pts 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? Passage type Distractor task Comprehension Reading level Question 9 2 / 2 pts 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? Passage type Distractor task Comprehension Reading level Question 10 2 / 2 pts 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 this scenario? It is one-tailed; directional. It is two-tailed; non-directional. It is one-tailed; non-directional. It is two-tailed; directional. Question 11 2 / 2 pts 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? Independent samples t-test Correlated groups t-test Pearson's r correlation Phi correlation IncorrectQuestion 12 0 / 2 pts 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? Environment Accuracy rate ESP Card suit Question 13 2 / 2 pts 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 research / alternate hypothesis for this scenario? Ability to predict card suits differs based on a psych's environment. Ability to predict card suits does not differ based on a psychic's environment. Psychics can better predict card suits when in their natural environment. Psychics cannot better predict card suits when in their natural environment. Question 14 2 / 2 pts Scenario: Is there a relationship between anxiety (X) and belief in God (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 most appropriate statistical test to conduct given this scenario? Pearsons r correlation Spearman correlation Point Biserial correlation Phi correlation Question 15 2 / 2 pts 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? Nominal Ordinal Scale Question 16 2 / 2 pts 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 X in this scenario? Nominal Ordinal Scale Question 17 2 / 2 pts 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 Y in this scenario? Nominal Ordinal Scale Question 18 2 / 2 pts 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 Y in this scenario? Nominal Ordinal Scale Question 19 2 / 2 pts Scenario: Is there a relationship between worker type (X) and productivity (Y)? The researcher defined worker type (X) as blue or white collar, and productivity (Y) as "high" or "low". Question: What is the scale of measurement for variable X in this scenario? Nominal Ordinal Scale Question 20 2 / 2 pts 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 scale of measurement for variable Y in this scenario? Nominal Ordinal Scale Question 21 2 / 2 pts Which of the following correlation coefficients is the strongest? 0.03 -0.51 -0.94 0.83 Question 22 2 / 2 pts If a researcher concludes that worker productivity increased when playing upbeat music but was incorrect, which of the following best represents her conclusion? correct decision Type III error Type II error Type I error Question 23 2 / 2 pts If a researcher concludes that cereal color has no effect on amount consumed but the researcher was wrong in this conclusion, which of the following best represents his decision? correct decision Type I error Type II error Type III error Question 24 2 / 2 pts If a teacher wants to assess whether positive feedback impacts test performance and she assesses test performance at the beginning and end of a semester in a single group of students, the most appropriate statistical test would be: point biserial correlation independent samples t-test correlated groups t-test pearson's r correlation Question 25 2 / 2 pts Which of the following do you statistically test when hypothesis testing? research hypothesis alternative hypothesis null hypothesis both hypotheses neither hypothesis Question 26 2 / 2 pts If examining the relationship between academic rank and ranked attractiveness, which statistical test would be most appropriate? Point biserial correlation Pearson's r correlation Spearman correlation Paired samples t-test Quiz Score: 44 out of 50
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psyc 515 research methods statistics ii
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wk 1 quiz 1 review concepts test results
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pscyhology psyc 515 wk 1 quiz 1
