Here are the questions for Chapter 9’s food for thought:

  • What is a between subjects design?  How does this differ from within subjects?
  • Define a two-independent sample t-test.  
  • What are the assumptions associated with a two-independent sample t-test?
  • A researcher measures the time it takes 13 men and 15 women to complete multiple tasks in a study. She compares the mean difference between men and women using the two-independent-sample t test. What is the critical value for this test if she conducts a two-tailed test at a .05 level of significance?
  • What is the denominator for computing an estimated Cohen’s d for a two-independent-sample t test?
  • If the difference between two means is 4, then what will the estimated Cohen’s d value be with a pooled sample standard deviation of each of the following? (a)   4 (b)   8 (c)   16 (d)   40
  • How do you calculate the degrees of freedom for a 2-independent sample t-test?
  • What is the pooled sample variance?  Pooled sample standard deviation? 
  • When an independent sample is selected, are the same or different participants observed in each group?
  •  Name three measures used to estimate effect size for the two-independent-sample t test.
  • What are the three steps to compute an estimation formula?
  •   In the following studies, state whether you would use a one-sample t test or a two-independent-sample t test. (a)    A study measuring differences in attitudes about morality among men and women (b)    A study testing whether night-shift workers sleep the recommended 8 hours per day (c)    An experiment measuring differences in brain activity among rats placed on either a continuous or an intermittent reward schedule.
  • Will each of the following increase, decrease, or have no effect on the value of the test statistic for a two-independent-sample t test? (a)    The total sample size is increased. (b)    The level of significance is reduced from .05 to .01. (c)    The pooled sample variance is doubled.
  • When is the t-test for independent means appropriate to use?
  • How should the t value be interpreted?  How do we know what it means?  For example, when t(28) = -0.16, p. n.s. – what does this mean?  
Order a unique copy of this paper
(550 words)

Approximate price: $22

Basic features
  • Free title page and bibliography
  • Unlimited revisions
  • Plagiarism-free guarantee
  • Money-back guarantee
  • 24/7 support
On-demand options
  • Writer’s samples
  • Part-by-part delivery
  • Overnight delivery
  • Copies of used sources
  • Expert Proofreading
Paper format
  • 275 words per page
  • 12 pt Arial/Times New Roman
  • Double line spacing
  • Any citation style (APA, MLA, Chicago/Turabian, Harvard)

Our guarantees

Delivering a high-quality product at a reasonable price is not enough anymore.
That’s why we have developed 5 beneficial guarantees that will make your experience with our service enjoyable, easy, and safe.

Money-back guarantee

You have to be 100% sure of the quality of your product to give a money-back guarantee. This describes us perfectly. Make sure that this guarantee is totally transparent.

Read more

Zero-plagiarism guarantee

Each paper is composed from scratch, according to your instructions. It is then checked by our plagiarism-detection software. There is no gap where plagiarism could squeeze in.

Read more

Free-revision policy

Thanks to our free revisions, there is no way for you to be unsatisfied. We will work on your paper until you are completely happy with the result.

Read more

Privacy policy

Your email is safe, as we store it according to international data protection rules. Your bank details are secure, as we use only reliable payment systems.

Read more

Fair-cooperation guarantee

By sending us your money, you buy the service we provide. Check out our terms and conditions if you prefer business talks to be laid out in official language.

Read more

Calculate the price of your order

550 words
We'll send you the first draft for approval by September 11, 2018 at 10:52 AM
Total price:
The price is based on these factors:
Academic level
Number of pages
Order your essay today and save 25% with the discount code: THANKYOUPlace Order