Cashback Offer (15th - 25th November 2020). Get Flat 10% Cashback credited in your account on a minimum transaction of $80. Post Your Question

Question Details Normal
$ 100.00

Samples, Power Analysis, and Design Sensitivity

  • From Education, General Education
  • Due on 25 Dec, 2015 02:50:00
  • Asked On 20 Dec, 2015 08:53:58
  • Due date has already passed, but you can still post solutions.
Question posted by
Online Tutor Profile
request

If you do a quantitative study (SCHOOL ADVISORY PROGRAM) for your dissertation, you must estimate the sample size you will need in order to have a reasonable chance of finding a relationship among the variables stated in your research hypotheses (should one exist), given your statistical analysis(es) and assumptions/calculations of factors 2-4 above. You must do this, even if you plan to use a convenience sample (see below). There are a number of sample size calculators available. Northcentral uses G*Power, which is required in this Activity. You will use G*Power’s “a priori power analysis” function to calculate a sample size. If it yields an unrealistically large size sample, you will rethink your design and assumptions and, perhaps, use G*Power’s “compromise power analysis” to estimate a workable sample size that makes sense. If you plan on using a convenience sample, you would use both analyses as part of your argument that your convenience sample is large enough.

Warm-up:
Download G*Power and play around with it. See how changes in assumptions and parameters affect sample size estimates. 

Submit:

Calculate the sample size needed given these factors:
one-tailed t-test with two independent groups of equal size
small effect size (see Piasta, S.B., & Justice, L.M., 2010)
alpha =.05
beta = .2
Assume that the result is a sample size beyond what you can obtain. Use the compromise function to compute alpha and beta for a sample half the size. Indicate the resulting alpha and beta. Present an argument that your study is worth doing with the smaller sample.
 

Calculate the sample size needed given these factors:
ANOVA (fixed effects, omnibus, one-way)
small effect size
alpha =.05
beta = .2
3 groups
Assume that the result is a sample size beyond what you can obtain. Use the compromise function to compute alpha and beta for a sample approximately half the size. Give your rationale for your selected beta/alpha ratio. Indicate the resulting alpha and beta. Give an argument that your study is worth doing with the smaller sample.
In a few sentences, describe two designs that can address your research question. The designs must involve two different statistical analyses. For each design, specify and justify each of the four factors and calculate the estimated sample size you’ll need. Give reasons for any parameters you need to specify for G*Power.

Length: 4 pages not including title page and reference page.

References: include at least 4 resources.

Available Answers
$ 60.00

[Solved] Samples, Power Analysis, and Design Sensitivity use as a guide onlyA++

  • This solution is not purchased yet.
  • Submitted On 20 Dec, 2015 09:20:44
Answer posted by
Online Tutor Profile
solution
Calculate the sample size needed given these factors: one-tailed t-test with two independent groups of equal size small effect size (see Piasta, S.B., & Justice, L.M., 2010) alpha =.05 beta = .2 Assume that the result is a sample size beyond what you can obtain. Use the compromise funct...
Buy now to view the complete solution
$ 95.00

[Solved] BTM8106 Week 7 | Complete Solution

  • This solution is not purchased yet.
  • Submitted On 20 Dec, 2015 12:01:51
Answer posted by
Online Tutor Profile
solution
in G*Power First, we select in test family : t-test And in statistical test we choice  means: Difference between two independent mean...
Buy now to view the complete solution
$ 50.00

[Solved] Power Analysis, and Design Sensitivity

  • This solution is not purchased yet.
  • Submitted On 21 Dec, 2015 10:34:13
Answer posted by
Online Tutor Profile
solution
Power Analysis, and Design Sensitivity Assume that the result is a sample size ...
Buy now to view the complete solution
Other Related Questions

No related question exists

The benefits of buying study notes from CourseMerit

Assurance Of Timely Delivery
We value your patience, and to ensure you always receive your homework help within the promised time, our dedicated team of tutors begins their work as soon as the request arrives.
Best Price In The Market
All the services that are available on our page cost only a nominal amount of money. In fact, the prices are lower than the industry standards. You can always expect value for money from us.
Uninterrupted 24/7 Support
Our customer support wing remains online 24x7 to provide you seamless assistance. Also, when you post a query or a request here, you can expect an immediate response from our side.
closebutton
Only 45 characters allowed.
closebutton

$ 629.35