Question

In: Statistics and Probability

Dr. Kovaleski is interested in examining whether quantity of sleep impacts problem solving ability. To test...

Dr. Kovaleski is interested in examining whether quantity of sleep impacts problem solving ability. To test problem solving ability, the research team gave participants a puzzle and measured how long it took participants to solve the puzzle in minutes. A group of participants were instructed to sleep 5 hours and then solve the puzzle in the morning. Then the same participants were instructed to sleep 7 hours and then solve a different puzzle in the morning. Then, participants were asked to sleep 9 hours and then solved a third puzzle in the morning.

5 hours

7 hours

9 hours

6

4

6

8

3

1

9

5

3

6

6

6

5

2

1

Answer the following questions and compute the Repeated Measures One Way ANOVA for the data provided above. For this example, assume that alpha is 0.05.

  1. What is the Independent Variable? What are the levels of the IV?
  2. What are potential confounds and internal validity threats in this design, if any?
  3. Given this data, what is your calculated F-value?
  4. Given this data, what is your critical value?
  5. Given this data, do you need to calculate an effect size? If so, what is the effect size?
  6. Given this data, do you need to calculate any Post-hoc tests? If so, which comparisons are significant?

Solutions

Expert Solution

IV is hours of sleep. The levels of Independent variable are 5hrs , 7hrs and 9hrs.

thus it may concluded that the hours of sleep affects the ability to solve the puzzle.

Tuckys test for pair wise comparison



For level 5hrs and 9hrs the solving ability is significant.

I have given my best to solve your problem. Please like the answer if you are satisfied with it. ?

orchestra answered 1 year ago
Next > < Previous

Related Solutions

Dr. Kovaleski is interested in examining whether quantity of sleep impacts problem solving ability. To test...
Dr. Kovaleski is interested in examining whether quantity of sleep impacts problem solving ability. To test problem solving ability, the research team gave participants a puzzle and measured how long it took participants to solve the puzzle in minutes. A group of participants were instructed to sleep 5 hours and then solve the puzzle in the morning. Then the same participants were instructed to sleep 7 hours and then solve a different puzzle in the morning. Then, participants were asked...
Dr. Kovaleski is interested in examining whether quantity ofsleep impacts problem solving ability. To test...
Dr. Kovaleski is interested in examining whether quantity of sleep impacts problem solving ability. To test problem solving ability, the research team gave participants a puzzle and measured how long it took participants to solve the puzzle in minutes. A group of participants were instructed to sleep 5 hours and then solve the puzzle in the morning. Then the same participants were instructed to sleep 7 hours and then solve a different puzzle in the morning. Then, participants were asked...
Dr. Su is interested in whether males and females differ in their verbal ability. She selects...
Dr. Su is interested in whether males and females differ in their verbal ability. She selects 5 males and 5 females to participate in her study. She administers everyone a test of verbal ability (scores ranging between 0-20, higher scores represent higher ability). Here are the scores Males: 10, 10, 12, 12, 16 Females: 9, 12, 12, 15, 17 Set up non-directional hypotheses for the independent t-test. Provide the decision rule, illustrating with a drawing. Conduct an independent t-test, report...
A student is interested in whether gender interacts with the effects of mood on problem solving....
A student is interested in whether gender interacts with the effects of mood on problem solving. The student induces mood by having participants (both males and females) write about a time when they felt a certain emotion. The emotions used are fear and happiness.  The participants are randomly assigned to one of these emotion conditions. To check the manipulation, the student has participants rate their emotional state after the manipulation, on a 1-7 scale with 1 meaning highly negative and 7...
A developmental psychologist is examining problem solving ability for grade school children. Random samples of 5-year-old,...
A developmental psychologist is examining problem solving ability for grade school children. Random samples of 5-year-old, 6-year-old, and 7-year-old are obtained and a set of problems are given to them. The number of errors is reported below. Number of errors 5-year-olds 6-year-olds 7-year-olds 32 31 18 31 21 21 24 19 24 15 18 21 34 30 20 23 26 16 17 25 15 18 23 26 21 18 17 20 15 18 19 24 17 30 25 15 A.        State...
A researcher wanted to know whether losing one night sleep can affect problem solving. A sample...
A researcher wanted to know whether losing one night sleep can affect problem solving. A sample of n = 25 college students was given a problem-solving task at noon on one day and again at noon on the following day. The students were not permitted any sleep between the two tests. For each student, the difference between the first and the second score was recorded: MD = 4.7 and standard deviation of the difference score was s = 8. Do...
1 A researcher wanted to know whether losing one night sleep can affect problem solving. A...
1 A researcher wanted to know whether losing one night sleep can affect problem solving. A sample of n = 25 college students was given a problem-solving task at noon on one day and again at noon on the following day. The students were not permitted any sleep between the two tests. For each student, the difference between the first and the second score was recorded: MD = 5 and standard deviation of the difference score was s = 10....
: Dr. Smith was interested in examining if a new language training program would produce a...
: Dr. Smith was interested in examining if a new language training program would produce a change in the reading scores for the individuals in the population. In general population of college students, scores on a standardized reading test that are normally distributed with the mean µ = 65 and standard deviation σ = 15. Because it was not feasible to administer the training to everyone in the population, a sample of n = 64 individuals was selected, and the...
Dr. Griswald wants to see how cell phone use impacts reaction time. To test this, Dr....
Dr. Griswald wants to see how cell phone use impacts reaction time. To test this, Dr. Griswald conducted a study where participants are randomly assigned to one of two conditions while driving: a cell phone or no cell phone. Participants were then instructed to complete a driving simulator course where reaction times (in milliseconds) were recorded by how quickly they hit the breaks in response to a cat running in the middle of the road during the course. Below are...
2. What is the key problem in using observational data in examining the causal impacts of...
2. What is the key problem in using observational data in examining the causal impacts of monetary policy? To what extent can it be solved by using VAR techniques? What is gained by the narrative approach and high frequency identification? Based on the paper by Ramey (2016), what results have been found using the latter two techniques?
ADVERTISEMENT
Subjects
ADVERTISEMENT
Latest Questions
ADVERTISEMENT