An instructor conducted an experiment to determine the effects of two different methods of study on the amount students learned in introductory physics. The results showed that the average amount learned by the group using one method was greater than the average amount learned by the group using the other. However, the difference was not statistically significant. Which of the following is the most appropriate conclusion to be drawn?

a. The group of students attaining the higher mean score had studied more than the other group.
b. The better study method will have different effects for students of varying levels of ability.
c. Neither group learned a significant amount.
d. There was a correlation between study method and learning.
e. The difference occurred by chance.

If the difference is most likely due to chance, the result of the experiment will show that it is not statistically significant. If it is statistically significant, it is not probably caused by chance. Statistical significance indicates a strong evidence against the null hypothesis. With significant result, the null hypothesis is rejected by the researcher, and the alternative hypothesis is accepted.

rowboatontario rowboatontario · Answer 2 · 2022-03-15T12:29:41+01:00

The Correct option is E. The Research study confirms that the Difference may have occurred by chance.

Research Methodology

A Scientific Research Study is based on qualitative and quantitative research methodology. The use of two variables, for comparitive study can give us desired result and sometime it can not, this is known as null hypothesis.

As the question suggest, the results showed not statistically significant difference between two studies. So we can call this a Null Hypothesis. Which may have occurred because of chance.

Learn More about Research Methodology here:

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