A stapler is used to staple 100 papers, it jams 5 times during the trial. A different brand of stapler performs the same test; it jams 22 times. What is the independent and dependent variables and the control group and the experimental group
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A stapler is used to staple 100 papers, it jams 5 times during the trial. A different brand of stapler performs the same test; it jams 22 times. What is the independent and dependent variables and the control group and the experimental group
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- To identify a positive control in your lab report, should you list any test tube with positive results? Why or why not? What is a negative control? Which substance is a negative control for each of the tests in this lab exercise?Describe the purposes of positive and negative controls; identify in an experiment like a test for HIV, which portions are positive and negative controls and which is (are) the test.A fellow classmate comes to you to ask your opinion about the following result from this SIM test: (Uploaded Picture). a) Provide a full interpretation and analysis of the results this test. b) Your classmate is not fully convinced about the black coloring seen in this result. Please suggest another type of method that would help confirm this result and what explain what the result should show.
- Differentiate in-vivo, in-vitro and in silico testing system. Give 1 example each.Could you please put in order the following experiment (erase the ones that are not needed): 1) A total of 8 bags will be made, Bags 1-4 will be the control group and 5-8 will be the test group. 2) Put 1 unripe pear in each of the control bags. Seal each bag and one unripe pear and 1 banana in each of the test bags and seal them. 3)Place all the bags together and record the observations from the initial appearance to the final appearance of the fruit each day. 4)After a few days the ripening status of them is tested by staining them with the iodine solution. 5) After preparing the iodine solution, pour the iodine stain into a shallow tray and dip it with a half-cut pear. 6) Allow the fruit to absorb the stain and remove and rinse it with water. 7) Repeat the step by adding more stain as needed to observe the ripening status.What is the experimental procedure illustrated in the figure above? What label (1-3 words) would you write next to each of the 5 arrows in the procedure? ) Briefly write a concise but complete description of the figure closely following the labels you have used in your answer to the second part of the question.
- what are the short comings of randomized clinical trials ?Can you show the step by step process of Voges Proskauer Test using a schematic diagram?True positive and true negative are determined using a gold standard, such as an established reference assay or a definitive clinical diagnosis. TrueFalse When FDA-approved or FDA-cleared methods are incorporated, the test performance is verified by using the purchased reagent sets to test validation specimens. This verification establishes that the results of the commercial test performed in the individual laboratory are as predicted by the developer. TrueFalse The negative predictive value is the degree that a particular test result corresponds with the presence of a clinical state, such as disease symptoms or response to therapeutic agent. TrueFalse The positive predictive value is the clinical specificity of the test, that is, the absence of that test result in the absence of the disease state or response. TrueFalse Answ