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![6. Randomization is key to a good experimental design. Give
2 benefits of randomization?
7. How is hypothesis of an experiment formulated? How is
hypothesis tested?
8. Explain single and double blinding? Give one benefit of
this experimental design methodology?
9. What is the "gold standard' in experimental methodology?
Why do you think it's the “gold standard"?
10. Why must we minimize error in experiments?](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fa589a0b1-5940-47b0-b798-8fa24b0ff23c%2F1a122c3e-5093-420c-90c8-33b4a8ee3ef4%2Fpiieag_processed.jpeg&w=3840&q=75)
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- 9. Was the control group valid? Why or why not? 10. Were the tenets of “Informed choice” (established after the Nuremberg Trials) used in obtaining subjects for this experiment? Why or why not? 11. How long was this study suppose to take? 12. How long did it actually continue? Why?1.________ errors may be avoided by ensuring that the tools that are used in the experiment are properly calibrated. 2. _______ errors can be minimized by conducting many trials3- Which of the following are true regarding predictions (mark ALL that apply): • A prediction uses the hypothesis to forecast what is going to happen in an experiment • If experimental results do not match our prediction, our hypothesis is supported | If experimental results match our prediction, we must reject our hypothesis © Predictions usually take the form of an "if, then" statement
- What are the shortcomings of randomized clinical trialsIdeally, an experimental group differs from a control group (a) only with respect to the hypothesis being tested (b) because its subjects are more reliable (c) in that it is less subject to bias (d) in that it is less vulnerable to sampling error (e) only with respect to the variable being studied1- How would you describe the Lenski experiment and its significance? Could you provide a concise explanation of the experiment in no more than half a page? Afterward, please create a visual representation of the experiment using your own drawings. You can utilize digital applications, such as Paint or tablet-based drawing tools, or hand-draw the diagram and capture it in a photograph. The visual representation should be schematic in nature, demonstrating the key components of the experiment. (you can draw the plates, bacteria etc. I need an explanative image that created by YOU. Any screenshot is not allowed. You can use paint, any application on your tablets or you can draw it by hand and take a picture. You need to create a schematic diagram. Here is an example for schematic diagram): 3FH From SNS-Rande -EGF MOFIDA + EGF MCFIGA Slencing of SNOC SHID 471 30 min 12h 8000 EGFR MANA tumor volume SNO mRNA ·A SNOO calony format inion A SNX3 proteins are upregulated during the early…
- I am stuck on four questions for this lab and they are: 1. What is the question being investigated in this experiment. 2. What is the independent variable? 3. What is the dependent variable? 17. What are the control treatments?1. 40 OT students were randomized into two groups and 40 nursing students were randomized into two groups. One of the OT groups and one of the nursing groups were given the opportunity to participate in a research project and present their data at an IPE conference. The other group of OT students and nursing students completed their normal course work. At the end of the semester the faculty measured all of their students’ knowledge about research design and confidence presenting information to others. (a) Independent Variable(s): (b) Dependent Variables(s): (c) Research Design: 2. 60 participants with a diagnosis of bulbar type ALS were divided into two groups to work with SLP either 3 times a week for 1 hour or 6 times a week for 2 hours. At the end of the study, all participants completed an assessment of speech quality and swallowing ability. (a) Independent Variable(s): (b) Dependent Variables(s): (c) Research Design:Which of these statements are true about predictions and hypotheses? (4 are true) □ If the results of the experiment are NOT consistent with a given prediction then that hypothesis is false. O Hypotheses and predotions are the same as theories. A predictions is a possible explanations to explain the initial observation. Predictions and hypotheses are the same thing. Predictions are usually written as if/then statements. "If I do this, then that will happen." O The prediction step comes before the hypothesis. Hypotheses are usually written as if/then statements. "If I do this, then that will happen." A hypothesis is a possible explanations to explain the initial observation. O The prediction step comes after the hypothesis.
- a longitudinal study. 2. Factorial designs allow researchers to study the effects of more than one independent variable simultaneously. Why is this advantageous? What information can factorialWhat are some of the assumptions behind the logic of the experiment described in Figure 5.26?1. What does the term forensic science mean? 2. Describe in detail one example of a forensic technology. Include a diagram. 3. What is DNA fingerprinting? How is it done? What information does it provide? How accurate is the information it provides? 4. What does the word “bias” mean when referring to Forensic DNA Profiling? 5. How might bias affect the outcome of a criminal investigation? Give an example. 6. Suggest one way in which bias might be compensated for in a criminal investigation.
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