PSYC 3002 Walden University

PSYC-3002-2 Week 2 Test Practice

PSYC 3002 Week 2 Quiz 1. The following is a list of temperatures for the month of January: 9, 8, 8, 7, 4, 4, 3. If the temperature of 9 degrees is changed to 45, what will happen to the mean? 2. Suppose you have a set of normally distributed data where the mean is 120 and the standard deviation is 15. What score is located at -2 standard deviations? 3. ______________ distributions contain more lower scores than higher scores. 4. The advantage of the range is that 5. The main advantage of t...

PSYC-3002-2/PSYC-3002P-2-2021-Winter-QTR-Term-wks-1-thru-6 Practice Test - Week 1 1. Pam wants to know if a new vocabulary intervention increases language development. She administers the intervention to 30 three-year-olds in daycare. She then compares the number of vocabulary words children who received the intervention can say to the number of vocabulary words children who did not receive the intervention can say. What is the independent variable in this study? 2. Pam is studying language d...

PSYC 3002 Week 6 test 1. If you are conducting a one-way chi-square for a study with 300 participants and 3 categories, what would the expected frequency be for a given category? 2. An analysis of home addresses of the people enrolled in your program of study showed that 565 people live in large cities, 410 live in small towns, and 110 live in rural areas. What statistic should be used to analyze these data? 3. A goodness of fit test has how many variables? 4. A researcher used chi square to...

PSYC 3002 Week 1 Test 1. Sarah learns that her 3-year-old scored as well as or better than half of children in Pam’s language development study. Sarah’s child scored at the _________ percentile. 2. Pam is studying speech development in 3-year-olds in daycare. She observes 30 children over two weeks, and takes note of various aspects of the children’s speech. What is the population in this study? 3. Pam wants to know if a new vocabulary intervention increases language development. She ad...

PSYC 3002 Week 4 Test 1. After determining your one-tailed t-test is significant, what should you do? 2. Researchers want to see if people taking a new medication for Type II diabetes have lower blood sugar than the population of people with Type II diabetes. The researchers should use a 3. A researcher wishes to test the hypothesis that a persuasive message about our government will change people’s attitudes toward politicians. Each of 20 participants’ attitudes is measured before and af...

PSYC 3002 Week 4 Test 1. When using a p value to determine statistical significance for a one-sample t-test 2. When plotting correlational data, the appropriate graph to use is the 3. The t distribution that you use to find your critical values closely resembles the normal distribution when the: 4. A marriage therapist conducts a study and finds a positive linear relationship between the happiness levels of wives and the happiness levels of husbands. This tells the therapist that 5. If a re...

PSYC-3002-2/PSYC-3002P-2-2021-Winter-QTR-Term-wks-1-thru-6 Test - Week 1 50 out of 50 points 1. The income of lawyers their first year after law school would be an example of what type of variable? 2. In a normal distribution with a mean of 30, what percentage of the scores would be above the mean? 3. Quantitative variables particularly measure 4. Pam is studying speech development in 3-year-olds in daycare. She observes 30 children over two weeks, and takes note of various aspects of the ...

PSYC 3003 Midterm Exam Week 6 – Question and Answers Before a study begins, when differences exist between the kinds of individuals in one group of an experiment and those in another, there is a potential threat to internal validity called A limitation of program evaluation research is its In comparison to the single-group before-after design, the comparison-group before-after design Which of the following three approaches are used to reduce the amount of data that needs to be recorded i...

PSYC 3002 Week 6 Test – Question and Answers If you are conducting a one-way chi-square for a study with 300 participants and 3 categories, what would the expected frequency be for a given category? An analysis of home addresses of the people enrolled in your program of study showed that 565 people live in large cities, 410 live in small towns, and 110 live in rural areas. What statistic should be use to analyze these data? A goodness of fit test has how many variables? A researcher used...