Question
In: Statistics and Probability
Researchers conducted a study to evaluate the effect of instruction on the time required to solve...
- Researchers conducted a study to evaluate the effect of instruction on the time required to solve a mechanical puzzle. In one condition, students were given the mechanical puzzle and told to solve it as fast as they could and were warned that the puzzle was extremely difficult and they should expect to have difficulty. In a second condition, students were just told to solve the puzzle as fast as they could. The researcher measured the time it took for each student to complete the puzzle.
- Identify the dependent variable for this study.
- Identify the independent variable for this study.
- What scale of measurement is used to measure the dependent variable? Is it discrete or continuous?
Solutions
Expert Solution
a) Identify the dependent variable for this study.
Dependent variable is a variable on which the effect of independent variable is observed. In our case the time taken by each students to solve the mechanical puzzle is observed for two cases.
Hence, the dependent variable for this study is time taken by each students to solve the mechanical puzzle.
b) Identify the independent variable for this study.
Independent variable is a variable on which parameter we differ the effect on dependent variable. In our case the instruction given to students are independent and the effect of instructions on time is studied.
Hence, the independent variable for this study is instructions given to each students to solve the mechanical puzzle.
c) What scale of measurement is used to measure the dependent variable? Is it discrete or continuous?
Since, dependent variable for this study is time taken by each students to solve the mechanical puzzle and it can be observed in continuous measure.
Hence, scale of measurement is used to measure the dependent variable is continuous.
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