1.3 Experimental Design Flashcards
Write a hypothesis.
If the amount of fungicide plants are exposed to increases, then the health of the bee colonies in the area will decrease.
If the amount of fungicide plants are exposed to increases, then the health of the bee colonies in the area will decrease.
What is the independent variable?
The amount of fungicide is the independent variable.
If the amount of fungicide plants are exposed to increases, then the health of the bee colonies in the area will decrease.
What is the dependent variable?
The health of the bee colonies is the dependent variable.
control group
The control group is the standard to which comparisons are made in an experiment.
Why are control groups important?
The purpose of an experiment is to see how changing one variable affects the other variables. Without a control group, there would be nothing to compare the data to.
If the amount of fungicide plants are exposed to increases, then the health of the bee colonies in the area will decrease.
What would the control group of this experiment be?
The control group of this experiment would be no plants in the area exposed to fungicides.
What do longer error bars show?
A wider range of data (less precise)
What do shorter error bars show?
A smaller range of data (more precise)
What does it mean when error bars overlap?
The differences in the averages are probably not statistically significant. An experiment is necessary to be certain.
What does it mean when error bars have little overlap?
The differences in the averages are probably not statistically significant. An experiment is necessary to be certain.
What does it mean when error bars don’t overlap?
The differences in the averages are probably statistically significant. An experiment is necessary to be certain.
