Question

How does phone use before bedtime affect sleep

Identify the independent variable, dependent variable and the controlled variable

Answer 1

Answer:

The variables in a study of a cause-and-effect relationship are called the independent and dependent variables.

The independent variable is the cause. Its value is independent of other variables in your study.

The dependent variable is the effect. Its value depends on changes in the independent variable.

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Answer 2

Phone use before bedtime affect sleep Identify the independent variable, dependent variable and the controlled variable.

• The length of time spent sleeping is the independent variable in a study to see if a student's amount of sleep has an impact on test scores, and the test score is the dependent variable.

• In some experiments, the dependent variable changes as a function of time. The scientist merely initiates the procedure, examines what happens, and records data on a regular basis.
• In an experiment, the independent variable's value is changed to see how it impacts the dependent variable. Therefore, sleep would be your independent variable and appetite would be your dependent variable if you wanted to investigate how sleep influences hunger.
• The quantity of sleep is the independent variable. Adversity is the dependent variable. College students often struggle with sleep deprivation, so I decided to measure these characteristics.
• The experimenter manipulates or modifies the independent variable, which is thought to have a direct impact on the dependent variable.
• The amount of sleep students get the night before an exam is an independent variable, and test scores are a dependent variable.

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