18 Questions
What is the primary purpose of controlling variables in an experiment?
To eliminate the effect of confounding variables
Which type of variable is allowed to change randomly in an experiment?
Random variable
What is the term for factors that changed during the experiment, although they were not intended to?
Confounding variables
What is the main purpose of identifying the independent and dependent variables in an experiment?
To establish cause-and-effect relationships
Which of the following is an example of a dependent variable?
The data collected from the participants
What is the main goal of experimental design in relation to variables?
To ensure that the independent variable affects the dependent variable
What type of data chart is best suited to show the trends in club membership per gender?
Clustered column chart
What is the independent variable in this experiment?
Type of data chart
What are the variables that may have affected the dependent variable, but were not intentionally changed by the researcher?
Confounding factors
What is the purpose of controlling variables in an experiment?
To isolate the effect of the independent variable
What is the dependent variable in this experiment?
Accuracy in reading the values
What is the main difference between a clustered column chart and a 100% stacked area chart?
The way they show categorical data
What is the primary difference between a 'questionnaire' and an 'interview' in data collection?
The method of data administration
In an experiment, what is the variable being tested or manipulated?
Independent variable
Which type of data analysis is often used for 'free-form opinions'?
Qualitative analysis
What is the purpose of a 'control variable' in an experiment?
To remain constant throughout the experiment
What type of data visualization is often used for large datasets?
Visualisation tool
What is the primary difference between a 'formative' and 'summative' evaluation?
The purpose of the evaluation
Test your understanding of variables in research, including independent variables, control variables, and factors that can influence the outcome of an experiment. Learn to identify and define different types of variables and how they relate to your research question.
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