C. The time of day the experiment is conducted. D. The age of the participants. 相关知识点: 试题来源: 解析 C。混杂变量是可能影响实验结果的额外变量。在音乐对情绪影响的实验中,实验进行的时间可能会影响参与者的情绪,从而成为混杂变量。选项 A 音乐音量可以作为独立变量控制。选项 B 音乐类型也可以...
What is an example of a confounding variable in an experiment? A researcher designs a cognitive study to test how career choices might impact the ability to solve a complex puzzle. However, the researcher forgot to account for the age of the participants, which is an extraneous variable. The...
a confounding variable is an extra variable entered into the equation that was not accounted for. Confounding variables can ruin an experiment and produce useless results. They suggest
To return to the example, age might be an extraneous variable. The researchers could control for age by making sure that everyone in the experiment is the same age. If they didn’t, age would become a confounding variable. Any time there is another variable in an experiment that offers an...
Confounding variable: A variable that isnot included in an experiment, yet affectstherelationship between the two variables(dependent and independent) in an experiment. This type of variable can confound the results of an experiment and lead to unreliable findings. ...
Sign In Sign Up Confounding VariableA Confounding Variable is an extraneous variable whose presence affects the variables being studied so that the results you get do not reflect the actual relationship between the variables under investigation. When conducting an experiment, the basic question that ...
In an experiment, the placebo effect or lack of blinding can confound results.Confounding Variable in Statistics Imagine that we are doing a study in which we wish to know the effects of a particular genre of movie on kids' appetites for candy. So, we gather three groups of children: At ...
This constitutes a confounding variable making it impossible to attribute conclusively differences among alcohol and control groups on measures of aggression to consumed alcohol. An experiment tested whether this difference in information affects subjects' conception concerning expected level of aggression ...
One may control for the alternate cause through an experiment(e.g., with random assignment to treatment and control) or by measuring a corresponding confounding variable and including it in the model. Unfortunately, there are some circumstances under which it is no...
Lab 2 Confounding Variables in Multiple Regression In this lab session we will create a data set that illustrates the bias that results from omitting a confounding variable in an observational study. We will 1. Create a pair of independent variables that are correlated. 2. Create a “true” ...