Homework Answers
Answer : is " biological gradient "
Because it is also known as a dose response curve, which shows the linear trend in the association between exposure and disease,
For example dose response associated between the number of cigarettes smoked and the lung cancer death rate.
So the answer is biological gradient.
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D Question 45 2 pts For which criteria of causality do you need to see a...
In the inference of causality, which of Hill's criteria is indisputable: Biological gradient (dose-response) Biologic plausibility Temporal sequence Specificity of association In the inferen...
In the inference of causality, which of Hill's criteria is indisputable: Biological gradient (dose-response) Biologic plausibility Temporal sequence Specificity of association
In the inference of causality, which of Hill's criteria is indisputable: Biological gradient (dose-response) Biologic plausibility Temporal sequence Specificity of association
I need help with my epidemiology class!! Question 15 2 pts Suppose we have found that there is a statistically signific...
I need help with my epidemiology class!!
Question 15 2 pts Suppose we have found that there is a statistically significant association between radon exposure and increased incidence of lung cancer. Choose two of the criteria needed to argue a causal relationship that were discussed in lecture and describe how these criteria could be used to determine that exposure to radon causes lung cancer Remember, the criteria discussed in class were Strength Consistency Specificity Temporality Biological Gradient Plausibility Coherence Analogy...
The study also provided mortality rates for cardiovascular disease among smokers and non-smokers....
The study also provided mortality rates for cardiovascular disease among smokers and non-smokers. The following table presents lung cancer mortality data and comparable cardiovascular disease mortality data. Table 2. Mortality rates (per 1,000 person-years), rate ratios, and excess deaths from lung cancer and cardiovascular disease by smoking status, Doll and Hill physician cohort study, Great Britain, 1951-1961. Mortality rate per 1,000 person-years Smokers Non-smokers All Rate ratio Excess deaths Attributable risk per 1,000 person-years smokers 1.23 2.19 percent among 1.30...
answer the following questions Stage 1 : categorized the evidence by the Quality of its source....
answer the following questions Stage 1 : categorized the evidence by the Quality of its source. 1 . Trails ( planned interventions with contemporaneous assignment of treatment and nontreatment ( a) Randomized , double -blinded, placebo -controlled with sufficient power appropriately analyzed (b) Randomized but blindness not achieved. (c) Nonrandomized trails with good control of confounding , that are well conducted in other respects (d)Randomized but with deficiencies in execution or analysis ( insufficient power , major losses to follow-up...
I only need the answers, do not need the analysis. Question 2 1 pts Which one...
I only need the answers, do not need the analysis.
Question 2 1 pts Which one is correct about addition of a regenerator to a Brayton cycle? increases the work produced by the turbine Decreases the supplied heat required Decreases the input work to the compressor all of the above Question 3 1 pts Using a two stage compressor with an intercooler in an ideal Brayton cycle result in: reduction in work consumed by the compressors increase in supplied heat...
Question 23 2 pts Which data base would you choose to investigate an association between milk...
Question 23 2 pts Which data base would you choose to investigate an association between milk development in children? drinking and bone O BRFSS O Census Bureau Data O NHANES National Vital Statistics System
please answer all question 9-11 Question 9 2 pts z scores are useful because they: o...
please answer all question 9-11
Question 9 2 pts z scores are useful because they: o reduce the probability of Type I and Type Il errors, allow permit the transformation of raw scores into percentiles. o transform linear scores into nonlinear scores, convert nonlinear scores back into linear scores, and allow us to obtain comparisons between nonlinear and linear scores. Pelation to the mean of its underlying population allow comparisons to be made between stores from different distributions, and permit...
Once again if you don't know answer don't just say need a new picture D Question...
Once again if you don't know answer don't just say need a new
picture
D Question 15 4 pts Select the option below that best describes the following picture: Biological flyways Administrative flyways Bird Conservation Regions Important Bird Areas Question 16 4 pts Which of the following devices determines locations of birds based on information about times of sunrise and sunset? Cell phones O PTTS VHF radio tags Solar-powered satellite tags Geolocators
D Question 45 2 pts Which of the following is a characteristic of all angiosperms? o...
D Question 45 2 pts Which of the following is a characteristic of all angiosperms? o complete reliance on wind as the pollinating agent O ovules that are not contained within ovaries carpels that contain microsporangia O double internal fertilization O free-living gametophytes Angiosperm double fertilization is so-called because it features the formation of two embryos from two sperm cells and two eggs. one embryo involving one sperm cell and an endosperm involving a second sperm cell. O one embryo...
help I dont know which of these two is correct Incorrect Question 7 0/0.5 pts (Multiple...
help I dont know which of these two is correct
Incorrect Question 7 0/0.5 pts (Multiple Choice) There are many similarities and differences between prokaryotic and eukaryotic DNA. This changes the way in which genes of interest are obtained and used for recombinant DNA/transformation experiments. Choose the correct statement below. No answer text provided No answer test provided For prokaryotes, the pene of interest can be cut directly out of the penome and inserted into the bland For prokaryotes scientists...
In the inference of causality, which of Hill's criteria is indisputable: Biological gradient (dose-response) Biologic plausibility Temporal sequence Specificity of association
In the inference of causality, which of Hill's criteria is indisputable: Biological gradient (dose-response) Biologic plausibility Temporal sequence Specificity of association
I need help with my epidemiology class!!
Question 15 2 pts Suppose we have found that there is a statistically significant association between radon exposure and increased incidence of lung cancer. Choose two of the criteria needed to argue a causal relationship that were discussed in lecture and describe how these criteria could be used to determine that exposure to radon causes lung cancer Remember, the criteria discussed in class were Strength Consistency Specificity Temporality Biological Gradient Plausibility Coherence Analogy...
The study also provided mortality rates for cardiovascular disease among smokers and non-smokers. The following table presents lung cancer mortality data and comparable cardiovascular disease mortality data. Table 2. Mortality rates (per 1,000 person-years), rate ratios, and excess deaths from lung cancer and cardiovascular disease by smoking status, Doll and Hill physician cohort study, Great Britain, 1951-1961. Mortality rate per 1,000 person-years Smokers Non-smokers All Rate ratio Excess deaths Attributable risk per 1,000 person-years smokers 1.23 2.19 percent among 1.30...
I only need the answers, do not need the analysis.
Question 2 1 pts Which one is correct about addition of a regenerator to a Brayton cycle? increases the work produced by the turbine Decreases the supplied heat required Decreases the input work to the compressor all of the above Question 3 1 pts Using a two stage compressor with an intercooler in an ideal Brayton cycle result in: reduction in work consumed by the compressors increase in supplied heat...
Question 23 2 pts Which data base would you choose to investigate an association between milk development in children? drinking and bone O BRFSS O Census Bureau Data O NHANES National Vital Statistics System
please answer all question 9-11
Question 9 2 pts z scores are useful because they: o reduce the probability of Type I and Type Il errors, allow permit the transformation of raw scores into percentiles. o transform linear scores into nonlinear scores, convert nonlinear scores back into linear scores, and allow us to obtain comparisons between nonlinear and linear scores. Pelation to the mean of its underlying population allow comparisons to be made between stores from different distributions, and permit...
Once again if you don't know answer don't just say need a new
picture
D Question 15 4 pts Select the option below that best describes the following picture: Biological flyways Administrative flyways Bird Conservation Regions Important Bird Areas Question 16 4 pts Which of the following devices determines locations of birds based on information about times of sunrise and sunset? Cell phones O PTTS VHF radio tags Solar-powered satellite tags Geolocators
D Question 45 2 pts Which of the following is a characteristic of all angiosperms? o complete reliance on wind as the pollinating agent O ovules that are not contained within ovaries carpels that contain microsporangia O double internal fertilization O free-living gametophytes Angiosperm double fertilization is so-called because it features the formation of two embryos from two sperm cells and two eggs. one embryo involving one sperm cell and an endosperm involving a second sperm cell. O one embryo...
help I dont know which of these two is correct
Incorrect Question 7 0/0.5 pts (Multiple Choice) There are many similarities and differences between prokaryotic and eukaryotic DNA. This changes the way in which genes of interest are obtained and used for recombinant DNA/transformation experiments. Choose the correct statement below. No answer text provided No answer test provided For prokaryotes, the pene of interest can be cut directly out of the penome and inserted into the bland For prokaryotes scientists...
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