To make an experiment more accurate, you can increase the sample size to reduce the effect of outliers, use control groups to isolate the variable being tested, ensure measurements are precise and consistent, and repeat the experiment multiple times to verify results.
Yes, a valid experiment can have only one independent variable. In fact, many experiments are designed with a single independent variable to investigate its specific impact on the dependent variable while controlling for other factors. This helps researchers to isolate the effect of that variable on the outcome of the experiment.
To make an experiment more reliable, it is important to have a large sample size, control for confounding variables, and ensure replicability by conducting the experiment multiple times. These factors reduce the impact of chance and increase the validity of the study findings.
In a valid experiment, only the independent variable can be deliberately changed by the researcher to observe its effect on the dependent variable. Other factors, known as constants, must remain the same to ensure that any observed changes in the dependent variable are a result of the independent variable manipulation.
?/
In a valid experiment all the variables are kept the same apart from those being investigated.
A control is needed in a valid experiment because without controls then more then one variable is being tested. This can mess up the results.
A valid experiment is characterized by a clear hypothesis, a control group for comparison, random assignment of participants, and the ability to replicate the results. It should also have ethical considerations and controls in place to minimize bias and confounding variables.
Draw a valid conclusion for that experiment.
To be valid, an experiment must not include bias, confounding variables, or unreliable measures in order to accurately assess the cause-and-effect relationship between variables.
cheese
A valid one. An experiment cannot conclusively prove anything if more than one independent variable is altered at a time. That being said, many dependent variables could show change and the experiment would still be valid, as long as only one independent variable was altered at a time. An experiment that changes only one variable at a time is called a controlled experiment.
I.What types of plants were used in the experiment?II.What was the experiment's control? III.Was the experiment repeated more than once?
to make the experiment more reliable
To make an experiment more accurate you would have to repeat the experiment 3-5 more times to make it reliable and also you would do what Liverpool college do and compare the answers with other people in the class, community or teacher.
3
There are several ways to make an experiment more valid. For example, one should always make any experiment repeatable, and they should conduct several trials before publishing results or coming to conclusions.