Episode 8 Cara Jitu Menentukan Variabel Penelitian Ilmiah

Summary

This video script explains the concept of variables in research, emphasizing their role in analytical studies. It distinguishes between independent variables (those that influence others) and dependent variables (those that are influenced). The script further discusses the importance of operational definitions, which not only define variables theoretically but also outline how they are measured and categorized. An example is provided, showing how a study on the impact of pop-up media on students' dental knowledge can classify and measure variables. The video aims to enhance understanding of how to structure research effectively.

Takeaways

• 😀 Variables are characteristics of observed objects that have variation, and they are essential in research.
• 😀 In research, variables are categorized mainly into two types: independent and dependent variables, especially in analytical research.
• 😀 Descriptive research does not test the relationship between variables, while analytical research aims to explore how one variable influences another.
• 😀 Independent variables influence dependent variables, while dependent variables are affected by independent variables.
• 😀 Dependent variables are metaphorically 'hung' or 'dependent' on the independent variables, hence the term 'dependent.'
• 😀 A simple schema can represent the relationship where arrows show how independent variables affect dependent variables.
• 😀 An example is given where the independent variable is the use of a pop-up media for health education, and the dependent variable is the level of knowledge among children.
• 😀 The operational definition of a variable goes beyond textbook definitions, involving how to measure, categorize, and assess data in a research context.
• 😀 Operational definitions include details such as the measurement method, categorization, criteria, and data scale used in the study.
• 😀 The number of operational definitions corresponds to the number of variables being studied, and only the variables involved in the study are operationally defined.

Q & A

What is a variable in research?

A variable is a characteristic or outcome observed in a group of objects that can vary. It represents results from a set of objects that exhibit variation.

How does a variable function in analytical research?

In analytical research, variables are divided into two types: independent and dependent. The independent variable influences or causes changes in the dependent variable, while the dependent variable is affected by the independent one.

What is the distinction between analytical and descriptive research in terms of variables?

In descriptive research, there is no goal to test the relationship between variables; it merely describes phenomena. In contrast, analytical research focuses on identifying and testing relationships between variables, such as cause and effect.

What is an independent variable?

The independent variable is the factor that influences or causes change in another variable. It is also referred to as the 'free' variable.

What is a dependent variable?

The dependent variable is the one that is influenced or changed by the independent variable. It is also known as the 'bound' or 'dependent' variable.

Why is the dependent variable called 'dependent'?

The dependent variable is called 'dependent' because its outcome is 'dependent' on the manipulation or effect of the independent variable.

Can you give an example of independent and dependent variables in a research context?

An example could be a study on the impact of using pop-up media on children's knowledge about dental health. Here, the independent variable is the use of pop-up media, and the dependent variable is the children's knowledge about dental health.

What is operational definition in research?

An operational definition provides a clear, precise explanation of how a variable will be measured or defined in the context of a study. It includes not just theoretical definitions but also measurement methods, categorization, and data scales.

What does an operational definition include in research?

An operational definition includes not only the theoretical or textbook definition of a variable but also the method of measurement, criteria for categorization (if applicable), and the data scale used in the research.

How many variables should be operationally defined in a study?

The number of variables defined operationally depends on the research. If there are multiple independent and dependent variables, each one that is being studied should have an operational definition. For instance, if there is one independent and one dependent variable, two operational definitions are required.