The
IV is the dose given and the DV is the intensity and frequency of symptoms
. The intensity and frequency of symptoms “depends” on the dose of drug given. Example 4: You are studying how tutoring affects SAT scores. Your independent variable(IV) is tutoring and the dependent variable(DV) is test scores.
How do you explain IV and DV?
In an experiment, the IV is a variable that is changed to see how it affects something else, whereas
the DV is a variable that is being measured/observed
. The DV is assumed to be affected by the IV, hence the term ‘dependent’ (its value depends on the state of the IV).
What are some other examples of dependent and independent variables?
| Research Question Independent variable(s) Dependent variable(s) | How well do different plant species tolerate salt water? The amount of salt added to the plants’ water Plant growth Plant wilting Plant survival rate |
|---|
What is independent variable in Research example?
The independent variable (IV) is the characteristic of a psychology experiment that is manipulated or changed by researchers, not by other variables in the experiment. For example, in an experiment
looking at the effects of studying on test scores
, studying would be the independent variable.
What is the IV and DV in an experiment?
Independent variables (IV)
: These are the factors or conditions that you manipulate in an experiment. Your hypothesis is that this variable causes a direct effect on the dependent variable. Dependent variables (DV): These are the factor that you observe or measure.
Is gender a DV or IV?
The relationships between gender (
IV, independent variable
) and depressive symptoms (DV, dependent variable) mediated by each personality factor (M1, mediator 1) and stress (M2, mediator 2).
Is there IV and DV in qualitative research?
You DON’T use variables in qualitative research
, and there is NO clearcut way to determine so called independent and dependent variables.
What are the 3 types of 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 a controlled variable example?
Examples of Controlled Variables
Temperature is
a much common type of controlled variable. Because if the temperature is held constant during an experiment, it is controlled. Some other examples of controlled variables could be the amount of light or constant humidity or duration of an experiment etc.
Which is a good example of a dependent variable?
The dependent variable is the variable that is being measured or tested in an experiment.1 For example, in a study looking at how tutoring impacts test scores, the dependent variable would be
the participants’ test scores
, since that is what is being measured.
What are the examples of independent variable?
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. Other factors (such as what they eat, how much they go to school, how much television they watch) aren’t going to change a person’s age.
How do you manipulate independent variables?
Again, to manipulate an independent variable means
to change its level systematically
so that different groups of participants are exposed to different levels of that variable, or the same group of participants is exposed to different levels at different times.
How do you know if a variable is independent?
You can tell if two random variables are independent
by looking at their individual probabilities
. If those probabilities don’t change when the events meet, then those variables are independent. Another way of saying this is that if the two variables are correlated, then they are not independent.
How do you remember the difference between IV and DV?
One way to remember the difference is to
literally consider the independent variable
as being ‘independent’, because it is the only thing that changes, as everything else in the experiment is controlled.
What is the IV and DV on a graph?
The
independent variable belongs on the x-axis
(horizontal line) of the graph and the dependent variable belongs on the y-axis (vertical line).
What are 3 control variables?
If
a temperature is held constant during an
experiment, it is controlled. Other examples of controlled variables could be an amount of light, using the same type of glassware, constant humidity, or duration of an experiment.
