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A teacher studied the influence of glucose on the activeness of students. Here the activeness of students is -
  • a)
    Independent variable
  • b)
    Dependent variable
  • c)
    Interfacing (intervening) variable
  • d)
    Mixed variable
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
A teacher studied the influence of glucose on the activeness of studen...
The things that are changing in an experiment are called variables. A variable is any factor, trait, or condition that can exist in differing amounts or types.
DEPENDENT VARIABLES show the effect of manipulating or introducing the independent variables. For example, if the independent variable is the use or non-use of a new language teaching procedure, then the dependent variable might be students' scores on a test of the content taught using that procedure. In other words, the variation in the dependent variable depends on the variation in the independent variable.
INDEPENDENT VARIABLES are those that the researcher has control over. This "control" may involve manipulating existing variables (e.g., modifying existing methods of instruction) or introducing new variables (e.g., adopting a totally new method for some sections of a class) in the research setting.
Whatever the case may be, the researcher expects that the independent variable(s) will have some effect on (or relationship with) the dependent variables.
INTERVENING VARIABLES refer to abstract processes that are not directly observable but that link the independent and dependent variables. In language learning and teaching, they are usually inside the subjects' heads, including various language learning processes which the researcher cannot observe. For example, if the use of a particular teaching technique is the independent variable and mastery of the objectives is the dependent variable, then the language learning processes used by the subjects are the intervening variables.
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A teacher studied the influence of glucose on the activeness of studen...
Understanding Independent and Dependent Variables
In any scientific study, variables are categorized to understand their relationships and impacts. In this scenario, we are examining how glucose affects student activeness.
Dependent Variable Explained
- The dependent variable is the outcome that researchers measure in an experiment. It is dependent on the changes made to the independent variable.
- In this study, student activeness is the variable that is being measured. The teacher observes how active students become in response to different levels of glucose intake.
Independent Variable Clarification
- The independent variable is the factor that is manipulated by the researcher to observe its effect on the dependent variable.
- Here, glucose intake is the independent variable. The teacher varies the amount of glucose to see how it affects student activeness.
Other Variable Types
- Intervening Variables: These can influence the relationship between independent and dependent variables but are not the main focus of the study.
- Mixed Variables: These involve a combination of categorical and continuous variables, but are not relevant here.
Conclusion
In summary, the teacher's study looks at how varying glucose levels impact the activeness of students. Thus, activeness is the dependent variable, as it is the outcome affected by the independent variable (glucose). Understanding these categories is crucial for analyzing experimental results effectively.
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