Chemistry, 07.10.2019 11:30 palcochran1313

In a controlled experiment, the factor tested is called the a. constant. b. independent variable. c. dependent variable. d. control.

Answers: 3

Show answers

Answers

Answer from: edjiejwi

In a controlled experiment, the factor tested is called the $\boxed{{\text{B}}{\text{. independent variable}}}$ .

Further Explanation:

A procedure that is performed in order to support, disprove or validate a hypothesis is known as an experiment. A hypothesis is an idea or thought that needs to be tested with the help of experiments.

Types of experiments:

1. Controlled experiments

The type of experiment that is used for comparing the results of experimental samples with the control samples is called a controlled experiment. Such experiments involve a drug trial. The experimental group will be the one that receives the drug and the other one receiving regular treatment will be the controlled group. The experimental group is also known as the treatment group. Another example of controlled experiments is the protein assay.

2. Natural experiments

These are also called quasi-experiments. These are performed by exposing individuals to the conditions that are governed by nature. Experiments involving weather changes and natural disasters are examples of natural experiments.

3. Field experiments

These are quite different from the experiments performed in the laboratory. Such experiments are usually performed in social studies. These have higher external validity as compared to normal lab experiments. Economic analysis of health and education are some examples of such experiments.

The variable that can be changed by the investigator is called the independent variable while the variable is the one that is affected by the changes in experimental conditions. All the variables in a controlled experiment are kept constant; except for the factor that is to be tested. Such a factor is called the independent variable or the experimental variable.

Learn More:

What is the main purpose of conducting experiments? What is the percentage error in the experiment?

Answer Details:

Grade: Senior School

Chapter: Keys to studying chemistry

Subject: Chemistry

Keywords: experiment, hypothesis, controlled experiment, natural experiment, field experiments, dependent variable, independent variable, quasi-experiments.

Answer from: Quest

they include patterns; cause and effect; scale, proportion, and quantity; systems and system models; energy and matter; structure and function; and stability and change.

can i get the brainiest answer

i answered it first

Answer from: Quest

The answer would be

Another question on Chemistry

Chemistry, 22.06.2019 09:00

Look at the spectrums of a star moving towards earth and a motionless star. which of these is a correct inference that can be draw from the observation of the two spectrums? (2 points) the spectrum of a motionless star is difficult to be viewed separately using oridinary telescopes. the spectrum of a motionless star is identical to the spectrum of a star which moves towards earth. the spectrum of a star shifts towards the red region when the star moves towards earth. the spectrum of a star shifts towards the blue region when the star moves towards earth.

Answers: 2

Answer

Chemistry, 22.06.2019 09:20

Explain that newton first law,second law and third law of motion?

Answers: 2

Answer

Chemistry, 22.06.2019 10:10

Stage in which a typical star has completely stopped fusion

Answers: 1

Answer

Chemistry, 22.06.2019 12:20

Achemistry student weighs out 0.306 g of citric acid (h3c6h5o7), a triprotic acid, into a 250 ml volumetric flask and dilutes to the mark with distilled water. he plans to titrate the acid with 0.1000 m naoh solution. calculate the volume of naoh solution the student will need to add to reach the final equivalence point. be sure your answer has the correct number of significant digits.

Answers: 3

Answer

You know the right answer?

In a controlled experiment, the factor tested is called the a. constant. b. independent variable. c....

Questions