BIO 1040 TEST QUESTIONS AND ANSWERS
LATEST UPDATE
science
knowledge about the natural world, a method/process for answering questions based on
observations and experimentations
scientific method order
1. make observations
2. study peer-reviewed literature
3. make hypothesis
4. carry out controlled experiments
5. analyze the data
6. make conclusions
independent variable
the variable that is changed in a systematic way
dependent variable
the variable that is measured
blind study
groups are not told whether they are the control or the experimental group
double blind study
neither the groups or the experimenters know who the control group or the experimental
group are
controlled experiments
test each hypothesis one by one to reduce variables, have a specific design
sample size influences the...of the experiment
accuracy
theory
an idea that explains an everyday event, a hypothesis that has never been disproved
even after many years of rigorous testing (but it can be proved wrong)
ex. cell theory, natural selection
epidemiology
the study of the incidence of disease in a population and factors influencing this
distribution
observational epidemiological studies
observe phenomenon existing in nature, collect data, and analyze systematically —
looking for patterns
causation
connects two variables as cause and effect, proves the reason behind the connection
positive correlation
as one increases, the other increases
negative correlation
as one increases, the other decreases
LATEST UPDATE
science
knowledge about the natural world, a method/process for answering questions based on
observations and experimentations
scientific method order
1. make observations
2. study peer-reviewed literature
3. make hypothesis
4. carry out controlled experiments
5. analyze the data
6. make conclusions
independent variable
the variable that is changed in a systematic way
dependent variable
the variable that is measured
blind study
groups are not told whether they are the control or the experimental group
double blind study
neither the groups or the experimenters know who the control group or the experimental
group are
controlled experiments
test each hypothesis one by one to reduce variables, have a specific design
sample size influences the...of the experiment
accuracy
theory
an idea that explains an everyday event, a hypothesis that has never been disproved
even after many years of rigorous testing (but it can be proved wrong)
ex. cell theory, natural selection
epidemiology
the study of the incidence of disease in a population and factors influencing this
distribution
observational epidemiological studies
observe phenomenon existing in nature, collect data, and analyze systematically —
looking for patterns
causation
connects two variables as cause and effect, proves the reason behind the connection
positive correlation
as one increases, the other increases
negative correlation
as one increases, the other decreases
