Once data is collected from both the experimental and the control groups,
a statistical analysis
is conducted to find out if there are meaningful differences between the two groups. A statistical analysis determines how likely any difference found is due to chance (and thus not meaningful).
What IRB reviews research that is conducted using human participants?
Whereas
IRBs
review research proposals that involve human participants, animal experimental proposals are reviewed by an Institutional Animal Care and Use Committee (IACUC). An IACUC consists of institutional administrators, scientists, veterinarians, and community members.
What variable measures the effects of the independent variable?
In experimental research, the independent variable is manipulated or changed by the experimenter to measure the effect of this change on
the dependent variable
.
What does it mean if a scientist finds that there is a correlation between the independent and dependent variables?
Correlation means that there is a relationship between two or more variables (such as ice cream consumption and crime), but this relationship does not necessarily imply cause and effect. When two variables are correlated, it simply means
that as one variable changes
, so does the other.
Which is a scientific way of determining facts?
empirical studies
is the answer.
What are 3 types of variables?
These changing quantities are called variables. A variable is any factor, trait, or condition that can exist in differing amounts or types. An experiment usually has three kinds of variables:
independent, dependent, and controlled
.
What is the independent variable in an experiment?
Answer: An independent variable is exactly what it sounds like. It is
a variable that stands alone and isn’t changed by the other variables you are trying to measure
. For example, someone’s age might be an independent variable.
What are the two common structural models used in a research administration office?
What are the two common structural models used in a research administration office? The types of structures used in research administration typically fall into one of three categories:
centralized, decentralized, or hybrid
. Each of these models has distinct strengths and weaknesses.
Which aspect of the scientific method occurs first?
The first step in the Scientific Method is
to make objective observations
. These observations are based on specific events that have already happened and can be verified by others as true or false.
Which IRB should be used for behavioral research?
The
Behavioral/NonMedical IRB (IRB02)
is responsible for reviewing and monitoring a subset of the research with human subjects conducted at the University of Florida.
What are some examples of independent and dependent variables?
Independent variable causes an effect on the dependent variable. Example:
How long you sleep (independent variable) affects your test score
(dependent variable). This makes sense, but: Example: Your test score affects how long you sleep.
What is difference between dependent and independent variable?
The independent variable is the variable the experimenter manipulates or changes, and is assumed to have a direct effect on the
dependent
variable. … The dependent variable is the variable being tested and measured in an experiment, and is ‘dependent’ on the independent variable.
How do you determine independent and dependent variables?
The dependent variable is the one
that depends on the value of some other number
. If, say, y = x+3, then the value y can have depends on what the value of x is. Another way to put it is the dependent variable is the output value and the independent variable is the input value.
What are the 7 scientific method steps?
- Ask a question. The first step in the scientific method is asking a question that you want to answer. …
- Perform research. …
- Establish your hypothesis. …
- Test your hypothesis by conducting an experiment. …
- Make an observation. …
- Analyze the results and draw a conclusion. …
- Present the findings.
What is the steps in the scientific method?
Form a hypothesis
, or testable explanation. Make a prediction based on the hypothesis. Test the prediction. Iterate: use the results to make new hypotheses or predictions.
What is scientific method example?
Example of the Scientific Method
Hypothesis:
If something is wrong with the outlet, my coffeemaker also won’t work when plugged into it
. Experiment: I plug my coffeemaker into the outlet. Result: My coffeemaker works! Conclusion: My electrical outlet works, but my toaster still won’t toast my bread.
