THE SCIENTIFIC METHOD Describe two characteristics that define a hypothesis as \
ID: 195656 • Letter: T
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THE SCIENTIFIC METHOD Describe two characteristics that define a hypothesis as "scientific." 2A hyroheslo can ke cienash ad oga but that does not mesn i is true. To dermine whether s hypotheis should be accepted as correct, it must be A recent experiment indicated that hormone replacement therapy in women increases the risk of suffering Aizheimer's disease. Hormone therapy is provided to women in pills containing estrogen and progesterone. What would be an appropriate control group for this experiment? . 4. Scientists are interested in the following hypothesis: Exposure to bacteria and waste products present in and on farm and pet animals in early childhood reduces the risk of the child developing asthma or severe allergies. Describe a prediction of this hypothesis. 5. Define "double blind" in the context of an experiment. 6. Describe how you could experimentally test the hypothesis that ingesting the herb Ginkgo biloba improves memory. Be sure to in- clude a description of the experimental control. A relatively small group of individuals that is meant to be representative of a larger population is termeda that population. of 7. A statistically significant difference between two samples is defined as one that has a populations the two samples came from are not different 8. chance or less of occurring if theExplanation / Answer
Answer 1) A hypothesis is considered as a scientific if it has at-least following two characteristics;
a) Testable - A scientific experiment is always testable such that we can design an experiment based on that hypothesis and get observations which can accept or reject the hypothesis.
b) Falsifiable - Falsifiability means that "we can accept the hypothesis as true based on the current experimental observation, but this hypothesis can be rejected or proved wrong if other experimental observations in the future reject or prove the hypothesis as wrong". this is another important characteristic of a scientific hypothesis.
Answer 2) Experimentally validated.
Reason- In order to a hypothesis be accepted as correct, it must be experimentally validated. if the result of an experiment (experimental observations) are in line with the hypothesis, then it can be accepted as correct. therefore, any hypothesis can be accepted only after experimental validation.
Answer 3) Negative control - Women's not taking such pills
Reason- In the given case, it is indicated that Pills contain hormones estrogen and progesterone. replacement of such hormones via pills increases the risk of suffering from Alzheimer's disease. therefore, women not taking any pills would not show such increased risk of suffering from Alzheimer's disease.
Answer 4) Prediction- Children exposed to the bacteria and waste products in their early childhood would be more immune to asthma and severe allergies.
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