BSC 1005 Ch.1 Notes
BSC 1005 Ch.1 Notes BSC 1005
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This 2 page Class Notes was uploaded by Cristina Rodriguez on Saturday September 3, 2016. The Class Notes belongs to BSC 1005 at Florida Atlantic University taught by Diane Lowell in Fall 2016. Since its upload, it has received 75 views.
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Date Created: 09/03/16
Ch 1. Process of Science (Text and Powerpoint) Definitions Science – the process of using observations and experiments to draw conclusions based on evidence Anecdotal Evidence – an informal observation Peer Review – the review of an article by experts before publication Hypothesis – a possible answer to the question under investigation Testable – if the hypothesis can be supported or rejected by carefully designed experiments or observation Falsifiable – if the hypothesis can be ruled out by data that shows that the hypothesis does not explain the observation Experiment – carefully designed test Experimental Group – a group the experiences intervention or manipulation Control Group – a group that does not experience intervention or manipulation Placebo – a fake treatment given to the control group to mimic the experience of the experimental group Independent Variable – the variable that is being changed in the experimental group Dependent Variable – the measured result of an experiment Sample Size the number of experimental subjects or the number of times an experiment was repeated Statistical Significance – a measure of confidence that results obtained are real and did not happen by chance Scientific Theory – an explanation that has never been disproved Epidemiology – the study of patterns of diseases in populations, including risk factors Correlation – a consistent relationship between two variables Randomized Clinical Trial – a controlled medical experiment where subjects are randomly picked to either receive the experimental treatment or the placebo Important Information Conclusions on evidence can change in the future if by other scientists Science is a never ending process Anecdotal evidence is often unreliable because it is based off systematic study Statements that have to do with supernatural or mystical explanations that can’t be tested are seen as being outside of the scientific explanation. These statements are known as “pseudoscience” If data supports the hypothesis it will be accepted for the time being until other data shows otherwise A hypothesis can’t be true once and for all A blind experiment is when none of the subject know if they are getting the experimental substance or the placebo A double blind experiment is when neither the subject nor the scientist knows who is getting the experimental substance or the placebo True in science is never final A theory is an explanation that has been tested and has never been disproved Caffeine effects the brain by counter acting the chemical adenosine, to keep you more alert Adenosine is the body’s natural sleeping pill With too much caffeine someone can experience jitters, anxiety, trouble sleeping, dehydration, and even heart palpitations Caffeine is addictive Correlation is not causation. They provide evidence that supports further research Journalists and scientist are not the only people who can say if the research is correct or not. Consumers can pick which studies should influence everyday life
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