Items that test for misconception CVM028 in this project (Original Project)
and key idea (If more than one variable changes a…)
Item ID
Number |
Item Description |
How Often the Misconception was Chosen |
Select This Item for My Item Bank |
CV017002
|
A controlled experiment involving the behavior of fish in fish bowls, in which the number of fish in the bowls varies and the temperature of the water and the amount of light is held constant, allows you find out the effect of the number of fish on fish behavior.
|
21% |
 |
CV018002
|
A controlled experiment involving the drying of swimsuit fabric, in which the type of fabric changes but how large a piece of fabric you use and how wet the fabrics are to start with are held constant, can tell you if the type of fabric affects how long it takes the fabrics to dry.
|
19% |
|
CV019002
|
A controlled experiment involving the floating of clay boats, in which the shape of the boats varies and the weight of the boats stays the same, can tell you if shape affects the floating of the boats.
|
19% |
|
CV018004
|
In a controlled experiment, the variable of interest is allowed to change. (Follow up to CR018002)
|
16% |
|
CV017004
|
In a controlled experiment, the variable of interest is allowed to change. (Follow up to CR017002)
|
16% |
|
CV030001
|
In an experiment involving three variables (X, Y, and Z) that could affect the outcome of the experiment, changing X and keeping Y and Z constant allows you find out the effect of X on the outcome of the experiment.
|
16% |
|
CV023005
|
In an experiment involving two variables (X and Y) that could affect the outcome of the experiment, changing X and keeping Y constant allows you to find out the effect of X on the outcome of the experiment.
|
14% |
|
CV019004
|
In a controlled experiment, the variable of interest is allowed to change. (Follow up to CR019002)
|
12% |
|
Control of Variables