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 trials
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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 trials
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- 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 designsPlease explain What are biological concepts of this experiment, limitations and improvements…Experimental techniques & the effect of the change of variables on the resultsThe 'control group' is an essential component of an experiment. This is because 1. A control group allows one to determine if a particular result is due to the experimental variable. 2. No, it's not essential in experimentation. A control group is not always necessary it depends on the experiment. 3. A control group allows for multiple variables to be tested at the same time. 4. A control group is required for the development of a prediction.
- List the three types of variables that are taken into account when designing an experiment, and briefly define each in your own wrods.I answered with a and c but keep getting told its the wrong answer. Which of the following is not a component of effective experimental designs in the early stages of a scientific study? Select one or more: a. small sample sizes b. experimental groups taking a placebo c. double blind experiments d. short duration e. animal models f. repetitive testingDiscuss the relationship between accuracy of results, time, and money in scientific research. What conditions should researchers take into account when trying to balance these factors?
- A standardized variable is… Select one: variable held constant during an experiment factor showing response factor being manipulated typically not included in controlled experimentsA controlled experiment ________. A. includes one group for which the scientist controls all variables B. is repeated many times to ensure that the results are accurate C. includes at least two groups, one of which does not receive the experimental treatment D. includes at least two groups, one differing from the other by two or more variablesExplain what Avery’s experiment showed in 1944. Briefly describe the idea behind the experimental set up. Mention the step by step findings and the conclusions.
- Ideally, 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 studiedExplain the factors that affect the validity of experimental data (controls, bias, correlation, statistics).Create a schemetic diagram of the experimental procedures down below (Also, attached below is a copy of an example of a schematic diagram)
