Different observational study designs

Assignment Help Biology
Reference no: EM1312420

a)  Complete the following table titled 'Applications of Different Observational Study Designs' indicating for every objective under the pertinent study design if objective is 'suitable' or 'not suitable'

Applications of Different Observational Study Designs Objective

Case Control

Cohort

Investigation of rare disease

 

 

Investigation of rare exposure

 

 

Investigation of long latent periods

 

 

Study of multiple exposures and determinants

 

 

Measurement of time relationship

 

 

Direct measurement of Incidence

 

 

 

 

 

 

b) Complete the following given table titled 'Benefits and de-merits of different the observational Study Designs' indicating for every event applicable to the pertinent study design if probability of such an event is 'high' or 'low'. In case you believe the probability between study designs is same then indicate 'same'.

Different Observational Study Designs Event

Case Control

Cohort

Selection bias

 

 

Recall bias

 

 

Loss to follow-up

 

 

Confounding affecting validity

 

 

Long time required

 

 

High cost

 

 

Reference no: EM1312420

Questions Cloud

Calculating cross price elasticity of demand : The demand function for VCRs has been estimated to be Qv = 123 - 1.7Pt + 46 Pm - 2.1Pv -5M, where Qv is the quantity of VCRs,Pt is the price of a videocassette,  pmis the price of a movie, Pv is the price of a VCR, and M  is income.
Describing the modern eating habits : Discuss the differences you have noticed between old and new Food Pyramid. Provide your opinion if you believe new Food Pyramid will be successful in modifying the eating habits of Americans or not.
Frequency distribution to create a probability distribution : Use frequency distribution to create a probability distribution, determine the (b) mean,(c) variance.
Computation of present value of an investment : Computation of present value of an investment and present value if you receive these payments at the beginning of each year rather than at the end of each year
Different observational study designs : Complete the following table titled 'Applications of Different Observational Study Designs' indicating for every objective under the pertinent study design if objective is 'suitable' or 'not suitable'.
Describing increase in selling time estate sales : Statewide real estate sales agency, Farm Associates, specializes in selling farm property in state of Nebraska. At.10 significance level, has there been an increase in selling time?
Compute cross price elasticity of demand : A study sponsored by the American Medical Association suggests that the absolute value of the own price elasticity for surgical procedures is smaller than that for the own price elasticity for office visits. Explain why this would be expected
P-value of the corresponding hypothesis test : If  p  denotes the  p -value of the corresponding hypothesis test, which of the following is true?
Find the final temperature of the system : The specific heat of a certain 50 g metallic block is 900 J/kg K. If the block is at an initial temperature of 80 degrees Celsius, and dropped into a 50 g bucket of water at 1 degree Celsius, Find the final temperature of the system

Reviews

Write a Review

Biology Questions & Answers

  Explain how it is expressed in a person and inherited

Hormone Z, responsible for maintaining normal blood levels of chemical A, binds to membrane-bound receptors on its target cells. These target cells use G-protein and cyclic AMP to carry out the response of hormone Z. compute the consequences if a dru..

  Transplantation between two of them equivalent to donating

They are though more closely related to each other than they are to either of their parents. since now they know their child will not be a hemophiliac! Explain how they know this.

  Binding decreases the activity of an enzyme

In Staphylococcus epidermidis, bacillus subtilis and escherichia coli, which one has gram- positive, which one has gram-negative? Also, which organism is the biggest? Which one is the least.

  Describe how they generated the type of probe

Noda and Numa in 1984 isolated the first voltage-gated sodium channel gene from the electric organ of the electric eel. Electric organs contain a high density of sodium channels. Tetrodotoxin (TTX) is a potent neurotoxin that blocks sodium channels. ..

  Determining if peanut butter is carcinogenic

Explain the experiments, their expected results, and your conclusions. You may suppose that you have an unlimited budget and an Institutional Review Board with very strict guidelines for research in humans.

  Which is a significant flaw in this experimental set-up

List and describe at least three cellular features of bacteria that could be targeted to inhibit or kill bacterial pathogen. Which is a significant flaw in this experimental set-up.

  The dissimilarity between exergonic and endergonic reactions

What is the dissimilarity between exergonic and endergonic reactions? Give an instance of each. What is the significance of each type of reaction.

  Action potentials are normally generated at the cell

Suppose that transgenic organisms can be developed to speed nitrogen fixation. How might use of these organisms affect ecosystem.

  How do their toxins travel in neural tissue

Since a doughnut contains a large quantity of energy that can become available for our metabolism when eaten, why isn't the doughnut "jumping" all over the counter or hot to the touch.

  What nerve damage did he maintain

Which is likely explains the genetic uniqueness of this population.   Following accident and reconstructive surgery, he noted that his left lower eyelid was still drooping and the corner of his mouth sagged. What nerve damage did he maintain.

  What is responsible for raising jims heart rate

Rabbits heterozygous for Pelger trait and exhibiting that phenotype are crossed. The offspring appear in a 2:1 ratio (Pelger : normal). Explain this strange ratio.

  What is the phenotypic ratio

What is the phenotypic ratio you would expect to see in the F2 generation if you were following a sex-linked trait? An autosomal trait? Two autosomal dominant characters (dihybrid cross).

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