Significant on performance of complex tasks

Assignment Help Other Subject
Reference no: EM13489445

Research has shown that losing even one night sleep can have a significant on performance of complex tasks such as a problem solving (Linde& Bergstroem, 1992)To demonstrate this phenomenon a sample of n = 25 college students was given a problem solving task 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 two tests. For each student, the difference between the first and second score was recorded. For this sample the student’s average M0 =4.7 points better on the first test with variance of s2 =64for the difference scores.

a. Do the data indicate a significant change in problem solving ability? Use a two tailed test with a = .05

b. Compute an estimated Cohen’s d to measure the size of the effect.

Reference no: EM13489445

Questions Cloud

Null and alternative hypotheses in a study designed : A researcher believes that family size has increased in the past decade in comparison to the previous decade-that is; people are now having more children was before. What are the null and alternative hypotheses in a study designed to asses this? Is t..
What kind of design is needed : After watching nursery-school children, Ken Garoo wants to test the hypothesis that some toys are more fun to play with than others. He decides to compare and no fun toys (blocks) with fun toys (stuffed animals).
Find the mean-median-mode-variance-standard deviation : Find the mean, median, mode, variance, standard deviation, and range for the following sample of quiz scores: 2, 3, 4, 4, 5, 5, 6, 6, 7, 7, 7, 8, 8, 9, 9
Demonstrate the health benefits of eating oatmeal : A researcher for a cereal company wanted to demonstrate the health benefits of eating oatmeal. A sample of 9 volunteers was obtained and each participant ate a fixed diet without any oatmeal for 30 days. At the end for the 30 day period, cholester..
Significant on performance of complex tasks : Research has shown that losing even one night sleep can have a significant on performance of complex tasks such as a problem solving (Linde& Bergstroem, 1992)To demonstrate this phenomenon a sample of n = 25 college students was given a problem so..
Neurological test scores significantly lower : Downs and Abwender (2002) evaluated soccer players and swimmers to determine whether the routine blow to the head experienced by soccer player produced long term neurological deficits. In the study, neuroligical test were administered to mature so..
Demonstrating how the results from the hypothesis test : Numerous studies have found that males repeat higher self esteem than females, especially for adolescents (Kling, Hyde, Showers, & Bussell, 1999). Typical results show a mean of self esteem score of M = 39.0 with SS = 60.2 for a sample of n= 10 ma..
Problems are eliminated or reduced with a repeated measure : Participants enter a research study with unique characteristics that product different scores from one person to another. For an independent measures study these individual difference can cause problems. Briefly explain how these problems are elim..
Null hypothesis although the independent variable : For each of the following examples, explain whether the researcher has made a correct decision or has made a Type 1 or Type 2 error. Explain why. a) Dr. G rejects the null hypothesis although the independent variable had no effect

Reviews

Write a Review

Other Subject Questions & Answers

  Discuss practical ways to promote cultural heritage tourism

Critically discuss the above statement and explain what makes Port-Louis culturally appealing in the Indian-Ocean Discuss two practical ways to promote Cultural Heritage Tourism (CHT) in the region of Port-Louis Identify some practical problem..

  Bird-foot delta

Why is a bird-foot delta like that of the present-day Mississippi below New Orleans likely to change naturally toward one with the shape of an equilateral triangle like the upper-case Greek letter delta (?)?

  Differences in mortality

While the elderly are not as isolated as stereotypes would lead us to believe, there are differences between men and women. Women are especially likely to be isolated. Because of differences in mortality.

  Weber-marx and durkheim on future

Illustrate out the term modernity? What is Postmodernity? What difference does it make for the individual and society if were moving into the postmodern age?

  Seculate the foreseen challenges when the organization

imagine you are an information systems security officer for a large federal government contractor. the cio has recently

  Benefits of regular physical activity

What are some of the benefits of regular physical activity? Why is physical activity important and how might it improve health and wellness?

  Provide an example of a job that could have a high

provide an example of a job that could have a high incidence of workplace musculoskeletal disorders wmsds. identify

  Human personality-behavioral traits-genetics and environment

The modernist philosopher John Locke argued that human behavior is determined almost entirely by nurture or environment. He argued that humans are born a tabula rasa (Latin for blank slate), and that all knowledge is acquired through experience.

  Causes of the civil war in sudan

What are the causes of the civil war in Sudan? What steps can the international community take to resolve this conflict?

  Describe several community relations strategies

Analyze several cultural factors that may be misunderstood by police. Describe several community relations strategies for improving community relations in the context of culture.

  Sources of national health expenditures presents

Sources of National Health Expenditures presents a breakdown of the sources of national health expenditures for selected years from 1970 through 2009. Comment on the changes in the categories of expenditure sources both year-to-year changes and chang..

  Creating an at-risk program

Imagine that you have been asked to serve on the advisory board for a new, alternative school program in your school district. The advisory board must specify the factors that will be considered in determining which students qualify for the program a..

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd