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 interpolation and extrapolation? What does it mean when we say a test statistic is conservative? What is a confounding variable? What are the 4 main types or data in statistics? What statistic identifies the value that is greater than or equal to 50% of the other data points in ...
42 is 21% of what number? What is critical or limiting factor in budgeting? What are the elements of art? What is a confounding variable? What factors affect enzyme activity? What are socialization factors that influence child development?
What is a confounding variable? What is a hypothesis? What is the best data collection and analysis method for grounded theory? What are some methods that can be used to collect data? What is a binomial? Which pattern of numbers is exponential?
Confounding variables are outside interference that affect both the independent and dependent variable. It is a type of extraneous variable which is... Learn more about this topic: Variables in Research | Definition, Types & Examples from
What is an omitted variable? An omitted variable is a confounding variable related to both the supposed cause and the supposed effect of a study. In other words, it is related to both the independent and dependent variable. Example: Omitted variableLet’s revisit the example of the effect of...
Confounding by indication occurs when the presence of the independent variable is driven by the confounding variable. Confounding by indication is a special kind of confounding; a confounding variable is a special kind of covariate; and a covariate is a special kind of independen...
When a researcher selects an independent variable in an experiment, behaviors of unexpected extraneous variables will sometimes be dependent on the intensity of the independent variable. An example of this situation is what is called a confounding variable. An example of such a variable might be th...
chosen to conduct the ice-cube experiment was on a salted road, but the experimenters did not realize the salt was there and sprinkled unevenly, causing some ice cubes to melt faster. Because the salt affected the experiment's results, it's both a lurking variable and a confounding variable...
What is the confounding variable in twin studies? Was there an independent variable in the Monster Study? What is the null hypothesis when comparing two quantitative variables? The experimenter usually sets the value of a. the independent variable. b. the dependent variable. c. all the extraneous...