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What type of data do you collect during an experiment?
Experimental data. Information about what conditions are present when measured or observed.
What is the experimental probability of rolling a 4 in the trial shown?
To determine the experimental probability of rolling a 4, you need to divide the number of times a 4 was rolled by the total number of rolls conducted in the trial. For example, if a 4 was rolled 3 times out of 20 rolls, the experimental probability would be 3/20, or 0.15. This probability reflects the observed outcomes based on the specific trial conducted.
What is the difference between dependent and independent variables?
The independent variable is the variable being manipulated in the experiment in order to show the effect on the dependent variable. It is also called the experimental variable.The dependent variable is the variable being observed in the experiment. Changes in the dependent variable as a result of changes in the independent variable are observed, which is the purpose of the experiment. Dependent variable is also called the response variable.
What is the dependent variable in sciene?
A dependent variable is the variable being tested in a scientific experiment.The dependent variable is 'dependent' on the independent variable. As the experimenter changes the independent variable, the change in the dependent variable is observed and recorded.For example, a scientist is testing the effect of light and dark on the behavior of moths by turning a light on and off. The independent variable is the amount of light and the moth's reaction is the dependent variable.
Why is probability important to a scientist?
Some but not all scientific models are based on the ability to determine the likelihood that a given experimental outcome has happened by chance alone. If you have an accurate understanding of how the variables in the experiment change when nothing in particular is affecting them, then you have a way to establish some confidence that your outcome is the result of your experimental procedure and not the result of purely random events. The experimental 'lingo' is that the researcher has to determine if the 'Null Hypothesis' can be rejected. The Null Hypothesis is that the experimental outcome is not significantly different from what you would expect if the experiment had no effect at all.As an example, if the probability in the natural world is that some event will happen by chance only one tenth of one percent of the time, then when I observe that event as my experimental outcome, I can be reasonably sure that my procedure has brought about the event; it is so unlikely that it happened by chance. It is not perfect, but few scientific procedures are. This also highlights the importance of replicating studies or of doing meta-analyses of experimental data gathered in many experiments to further reduce the likelihood that observed outcomes are nothing more than chance events.
What experimenter variable is used to measure manipulation?
Experimenter variables are characteristics of the researcher that can influence the study outcomes, but are not typically used to measure manipulation in an experiment. Instead, manipulation is typically measured by the observed changes in the dependent variable(s) resulting from the experimental treatment or condition.
Kevin recorded the effects of violent video games on antisocial behavior. Which of these is a response variable?
Variables of interest in an experiment (those that are measured or observed) are called response or dependent variables. Other variables in the experiment that affect the response and can be set or measured by the experimenter are called predictor, explanatory, or independent variables. Antisocial behavior
Ann recorded the effects of watching television on physical fitness. Which of these is a response variable?
Variables of interest in an experiment (those that are measured or observed) are called response or dependent variables. Other variables in the experiment that affect the response and can be set or measured by the experimenter are called predictor, explanatory, or independent variables.Variable - not consistent or having a fixed pattern; liable to changePhysical fitness
Match the experimental conditions applied to the photoelectric effect observed.?
conditions of photoelectric effect
Why is replication important in experimental?
Observed results are less likely to be affected by random chance.
Why is replication in experimental design?
Observed results are less likely to be affected by random chance.
What are synonyms for empirical?
first-hand, direct, observed, practical, actual, experimental, pragmatic, factual
Why is replication important and experimental design?
Observed results are less likely to be affected by random chance.
Which of these mechanisms is consistent with the observed rate law?
The mechanism that is consistent with the observed rate law is the one that matches the experimental data and mathematical expression for the rate of the reaction.
Who discovered electroluminescence?
yeast
What type of data do you collect during an experiment?
Experimental data. Information about what conditions are present when measured or observed.
What constitutes a science?
When observation is present and various experimental techniques are employed to determine the cause of what's observed.
