Because there are two unknown variables.
Independent variables are factors that can be manipulated or changed in an experiment to observe their effect on dependent variables. Five examples include: 1) Temperature in a study on the rate of chemical reactions, 2) Amount of sunlight in a plant growth experiment, 3) Dose of medication in clinical trials, 4) Type of fertilizer used in agricultural research, and 5) Duration of exercise in a fitness study. Each of these variables can be controlled to assess their impact on the outcomes being measured.
Every time the independent variables change, the dependent variables change.Dependent variables cannot change if the independent variables didn't change.
A confounding variable is an extraneous factor that can influence both the independent and dependent variables in a study, potentially skewing the results. For example, in a study examining the relationship between exercise and weight loss, diet could be a confounding variable, as it impacts both the amount of weight lost and the effectiveness of exercise. If not controlled for, diet may lead to incorrect conclusions about the impact of exercise on weight loss.
control variables: the things that are not changing.Independent variables: the things that you change.Dependent variables: the things that are changed due to the independent variable
Because there are two unknown variables.
it depends on several variables, but on average: 1600-2400 ml/breath
how fit the person you are measuring is, how cold it is, how much he person has exercised, if they have a virus, how long after the exercise you get a measurement. i believe that is all.
The independent variable is the amount or type of exercise that the participants engage in. The dependent variable is the participants' weight measurements.
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Investigators use laboratory experiments to exercise maximum control over the factors they are interested in studying. This method allows researchers to manipulate variables, control the environment, and establish cause-and-effect relationships between variables.
Researchers often use experimental designs to manipulate and control variables to study their effects. By controlling these factors, researchers can isolate the specific variables of interest and draw more reliable conclusions about their impact on the outcome. This helps minimize confounding variables and increases the internal validity of the study.
Exercise psychology aims to study the psychological factors influencing physical activity and exercise behavior. It helps understand how motivation, attitudes, self-perception, and other psychological variables impact exercise participation, adherence, and performance. The field uses this knowledge to develop strategies that enhance exercise motivation, engagement, and overall well-being.
Investigators use laboratory experiments to exercise maximum control over the factors they are interested in. This method allows researchers to manipulate variables directly to study their effects in a controlled environment.
Test variables are the factors that are intentionally changed or manipulated by the researcher in an experiment, whereas outcome variables are the factors that are measured and affected by the test variables. Test variables are the independent variables that are controlled by the researcher, while outcome variables are the dependent variables that change in response to the test variables. The relationship between the test variables and outcome variables is explored to determine the effect of the test variables on the outcome variables.
There are three types of variables tested: manipulated variables, controlled variables, and experimental variables.
Every time the independent variables change, the dependent variables change.Dependent variables cannot change if the independent variables didn't change.