contact Lenses improve lives. Contact lenses are an example of an __________.
my answer is indepentant variable.
Someone help. it's for a science experiment.
An independent variable is the potential stimulus or cause, usually directly manipulated by the experimenter, so it could also be called a manipulative variable.
A dependent variable is the response or measure of results. What criteria are you going to use to measure life improvement?
Contact lenses are not an example of an independent variable. Independent variables are manipulated by the researcher in an experiment to observe their effects on the dependent variable. In this case, contact lenses are not being manipulated within a scientific experiment, but rather they are an object or tool that can be used to correct vision or provide other benefits.
If you are conducting a science experiment and need an independent variable related to contact lenses, you might consider studying the effect of different contact lens materials, lens designs, or wearing schedules on factors such as visual clarity, eye comfort, or the risk of eye infections. In these cases, the independent variable would be the specific aspect of contact lenses that you are varying or manipulating.
To further improve your science experiment, it would be helpful to define a clear hypothesis, identify a suitable independent variable, determine appropriate dependent variables, and establish a specific procedure to test your hypothesis.