Experiments must be carefully planned and designed, so the experiment on completion fulfills the objectives of the researcher. Although experiments are more difficult to conduct in the educational environment than in a scientist's laboratory, many procedures are available to assist accounting education ...
In stark contrast, dependent variables, also known as "responding variables," are the outcomes or responses measured as a result of changes in the independent variable. They are the "then" in the scientific hypothesis. In our plant growth experiment, the height of the ...
make the experiment easier C. understand the relationship between variables D. save time 相关知识点: 试题来源: 解析 C。控制变量能帮助我们理解变量之间的关系。选项 A 得到更多结果不准确;选项 B 使实验更容易不是主要目的;选项 D 节省时间也不是控制变量的主要作用。反馈 收藏 ...
In an experiment, we need to control variables to ensure the accuracy of the results. “Control variables” means ___. A. change variables B. keep variables the same C. increase variables D. decrease variables 相关知识点: 试题来源: 解析 B。“Control variables”的意思是控制变量,也就是保持...
In an experiment about a fertilizer's effect on plant growth, the independent variable is the fertilizer because it is manipulated. Another example is experimenting with the most ideal time of the day to catch fish. The independent variable in this scenario is the time of the day. The second...
What is the control in an experiment? A control in a science experiment is a sample that is not affected by changes occurring from the independent variable. It is meant to establish the validity of the experiment. How do you find the control in an experiment? You find the control in an ...
国外心理学研究方法课件10.variables1 ExperimentBasics:Variables Psych231:ResearchMethodsinPsychology Results Mean:80.7%Median:83%Range:51-98 Ifyouwanttogooveryourexamsetupatimetoseeme Exam1 PrintouttheClassexperimentexercise(fromtheLabwebpage)andbringittolabsthisweekTurnin...
The experimenter usually sets the value of a. the independent variable. b. the dependent variable. c. all the extraneous variables. d. none of the variables in the experiment. Write the operational definition, independent variable, and dependent variable for the question, what is t...
is the variable that the researchers are manipulating in an experiment or quasi-experiment. It is also the label given to the “criterion” variable in certain types of regression analysis. For example, if a researcher has two groups of people watch either a happy film or a sad film before...
In an experiment about the influence of pH on enzyme activity, how can variables be controlled? A. Use different enzymes and different pH values B. Use the same enzyme and different temperatures C. Use the same enzyme and change only the pH value D. Use different E. nzymes and different ...