# What are dependent and independent variables biology?

There are two key variables in every experiment: the independent variable and the dependent variable. Independent variable: What the scientist changes or what changes on its own. Dependent variable: What is being studied/measured.

## What is an independent variable example?

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 identify independent and dependent variables?

The easiest way to identify which variable in your experiment is the Independent Variable (IV) and which one is the Dependent Variable (DV) is by putting both the variables in the sentence below in a way that makes sense. “The IV causes a change in the DV. It is not possible that DV could cause any change in IV.”

## 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.

## What are some examples of independent and dependent variables?

The type of soda – diet or regular – is the independent variable. The level of blood sugar that you measure is the dependent variable – it changes depending on the type of soda.

## What is dependent and dependent variable?

The dependent variable is the variable being tested and measured in an experiment, and is ‘dependent’ on the independent variable. An example of a dependent variable is depression symptoms, which depends on the independent variable (type of therapy).

## What is a dependent variable simple?

A dependent variable is a variable whose value depends upon independent variable s. The dependent variable is what is being measured in an experiment or evaluated in a mathematical equation. The dependent variable is sometimes called “the outcome variable.” In a simple mathematical equation, for example: a = b/c.

## What is the dependent variable in an experiment?

The two main variables in an experiment are the independent and dependent variable. An independent variable is the variable that is changed or controlled in a scientific experiment to test the effects on the dependent variable. A dependent variable is the variable being tested and measured in a scientific experiment.

## What is dependent and independent variable in research example?

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.

## Is gender a dependent variable?

dependent variable. Independent variables included in the first step are demographic variables such as age, gender, marital status, and education, and in the next steps are eco- nomic related variables including employment status and self-rated economic condition.

## Is death an independent variable?

Univariable and multivariable analyses were performed with preferred place of death as a dependent variable and other factors as independent variables.

## Is time an independent variable?

Time is a common independent variable, as it will not be affeced by any dependent environemental inputs. Time can be treated as a controllable constant against which changes in a system can be measured.

## Is weight dependent or independent?

Calorie intake is your independent variable and weight is your dependent variable. You can choose the calories given to participants, and you see how that independent variable affects the weights.

## What type of variable is age?

The age is another example of a continuous variable that is typically rounded down.

## Is race an independent variable?

Independent variables considered included race/ethnicity, age, gender, marital status, education, annual household income, regular physician, and health status.

## Is blood pressure an independent variable?

The dependent variable is the one that depends on your independent variable; in other words, the dependent variable is the one you measure. For the question you first proposed, gender would be the independent variable and blood pressure would be the dependent variable.

## Is temperature independent or dependent?

Think of if you were looking at how temperature changed with the time of day. It’s hotter in the middle of the day than at either morning or night. So, the temperature depends on the time. So, the temperature is dependent, and the time is independent.

## How do you identify a variable?

A variable in research simply refers to a person, place, thing, or phenomenon that you are trying to measure in some way. The best way to understand the difference between a dependent and independent variable is that the meaning of each is implied by what the words tell us about the variable you are using.

## Are hours dependent or independent?

Independent variable is Time in hours; Dependent variable is Distance in miles.

## Is food a dependent variable?

The amount of food depends on the day, so it is the dependent variable. For another example, you decide to see whether heart rate is affected by temperature. In other words, if you change the temperature, then does it affect your heart rate? Temperature is the independent variable or the one you control.

## What variable is gender?

For example, gender is a categorical variable having two categories (male and female) with no intrinsic ordering to the categories. An ordinal variable has a clear ordering.

## What kind of variable is gender?

A good example of a nominal variable is sex (or gender).

## What type of data is gender?

For example, gender is a categorical data because it can be categorized into male and female according to some unique qualities possessed by each gender. There are 2 main types of categorical data, namely; nominal data and ordinal data.

## Is religion a dependent or independent variable?

kowski and Luther Martin make two main claims: that religion has not been shown to be an independent variable, and that Max Weber, touted as the inspiration for this view among social scientists, does not himself always deem religion an independent variable.

## Is age a response variable?

Example: Height & Age The students want to use height to predict age so the explanatory variable is height and the response variable is age.