0
A researcher performing an experiment introduces changes in an response variable and tries to explain or bring about resulting changes in the explanatory variable?
Wiki User
∙ 8y ago
True
Wiki User
∙ 8y ago
Add your answer:
Earn +20 pts
When a researcher cannot tell which variable might be causing an observed effect in an experiment the variables are?
confounded
What is the difference between correlation and experiment?
An experiment is when the researcher manipulates the independent variable and records its effect on the dependent variable whilst maintaining strict control over any extraneous variables. A correlation is a statistical relationship between two or more variables. The researcher makes a change in one of the variables to see what is affected.
What is dependant variable?
A dependant variable is a term used in science to identify the response that is measured in an experiment. When a researcher conducts an experiment, he is interested in the outcome, defined as the dependent variable.
What is Hypothesis of a researcher?
The researcher's working theory of what s/he expects the research either to prove or disprove.
What is the entire group that the researcher is studying?
The entire group that the researcher is interested in is called the population or the target population.
A researcher tries to explain or bring about resulting changes in the response variable by performing an experiment which introduces an explanatory variable?
Answer is True... Via ApexVs
Does an observational study or a designed experiment allow the researcher to claim causation between and explanatory variable and a response variable?
designed experiment
When the experiment is complete what does the researcher do?
Repeats the experiment for validity
What difference between an observational study and an experiment?
in an experiment, the researcher manipulates a variable
What is the primary difference between an experiment and observational study?
In an experiment, the researcher manipulates a variable.
What introduces victor to the study of electricity and galvanism?
a violent thunderstorm, and subsequent conversation with a famous researcher.
What is the difference between factor and treatment in a experiment?
treatment is a factor in which a researcher will apply to an experimental unit and collect the data from the same. factor is a material used by researcher in an experiment in the field .
What variable did the researcher change during this experiment?
Control Variable
How many blocks will there be in her experiment?
A researcher wishes to design a fully blocked experiment with groups of subjects representing every possible combination of 1 explanatory variable (control vs. treatment) and 3 other variables (male vs. female, old vs. young, healthy vs. ill) for a total of 4 variables. 16
One of the hardest task for researcher?
stating the problem and then designing the experiment.
Which variable does the researcher intentionally change in a scientific experiment?
The one she is testing.
In an experimental design the variable the researcher has control over and that is different for the treatment and control groups is called the?
Explanatory variable apex
