The following are reasons why randomized control trials (RCTs) are not used to investigate all research questions, except:    a. RCTs can be expensive, which can make it difficult if funding is limited   b. RCTs can be time-consuming, and it may take months and sometimes years to obtain final results   c. For certain research questions and/or certain types of exposure variables, it may not be ethical to conduct an RCT   d. RCTs are less valid than observational analytical study designs

Give typing answer with explanation and conclusion Briefly define each of the following terms in your own words and prove three examples of how if not done properly they can negatively impact research 1. Recall bias 2. Healthy worker effect 3. Control selection bias

A. Search for information from 1 of the 3 sizes that are below: I choose the small size  Small 1.finches 2. Parakeets  Medium 1.Cockatiel 2. Pigeons  Large 1. Parakeets 2. Macaws B. Then Explain the steps of the bird size of your selection of each of the following:  How to take it out and return it to the cage  Form of restriction  How and where it can be done blood collection  How to hold the animal to perform the nail cutting

Which of the following statements can be a research hypothesis? Only one answer A) The aim of the study is to find out the relationship between variables A and B B) There is a significant difference between groups C) Variable A is contingent on variable B D) Variable A significantly and positively correlated with variable B

Lead time bias is best described as   a. an apparently lower survival rate among persons screened compared to an unscreened group   b. a similar survival time for persons identified during a screening program relative to persons who are diagnosed by clinical symptoms   c. an apparently longer survival time among persons identified during a screening program because they were identified at an earlier stage of their disease   d. a truly longer survival time for persons identified during a screening program because they were given an effective treatment

You observe that every time your neighbor, who always wears a yellow hat, walks out his front door, he gets dive bombed by a crow. From this observation, what is a testable hypothesis? What is your prediction based on your hypothesis? Please design an experiment to test this hypothesis and prediction. You must identify the independent and dependent variables, as well as at least 2 control variables, and your experiment must contain an experimental group and a control group

Solomon Asch’s classic experiment (in which subjects judged a “standard” line and “comparison” lines) showed that   a.  subjects were not nervous or upset about making judgments different from the group.     b.  when tested alone only five percent of the subjects made errors of judgment.     c.  subjects yielded to group pressure in only ten percent of the critical test trials.     d.  75 percent of the subjects yielded to group pressure at least once

What are the potential negative reasons that exist when utilizing DTC genomic tests with respect to the analysis of an individual's health? Could large scale, or mass testing, projects solve these drawbacks?   asap please

28. Which of the following choices refers to the data between the probability of a positive test result giventhe presence of the disease and the probability of a positive test result given the absence of the disease?A. Negative likelihood ratioB. Negative predictive value C. Positive likelihood ratioD. Positive predictive value 29. Which of the following choices refers to the amount of time that a diagnosis is advanced by screening?A. Lead time biasB. Length bias sampling C. Survival rateD. Survival time 30. A point on a continuum that extends from clearly normal results (for healthy people) to abnormal results (forpeople who have preclinical disease) is called _____.A. Bias indexB. Criterion of positivity C. Predictive valueD. Source of test errors 31. The reliability of a test is the ability to give the same result on repeated testing. Reliability is influenced bywhich of the following?A. All of the optionsB. Interobserver and intraobserver agreement among the analysts conducting the…

The legend from figure 1 includes all of the following information EXCEPT: a. the error bars represent the standard error b. the number of replicates (n) c. a brief explanation of the experiment design d. which pH level caused the greatest delay in egg laying egg laying time (h) 56- 54- 52- 50- 55 54 54 3.13 3.33 4.33 53 5.33 52 6.33 53 7.33 53.7 54 8.33 9.33 53.3 10.33 54 11.33 pH FIGURE 1 | Egg laying time in different pH environments. Thirty-five newly hatched L1 were cultured at specific pH medium. The earliest observed egg laying time on each plate was recorded. Error bars represent the standard error from three replicated experiments.