1. Research Methods
Scientific Method — Quiz
Test your understanding of scientific method with 5 practice questions.
Practice Questions
Question 1
A researcher aims to investigate the impact of different teaching styles on student engagement. They define 'student engagement' as the number of times a student voluntarily participates in class discussions during a 30-minute lesson. Which aspect of the scientific method is this researcher primarily addressing?
Question 2
In a study designed to examine the effect of a new memory enhancement technique, participants are randomly assigned to either the experimental group (receiving the technique) or a control group (receiving no intervention). Which of the following is the most critical reason for using random assignment in this experimental design?
Question 3
A psychologist is investigating whether the amount of sleep a person gets affects their reaction time. They hypothesize that 'individuals who sleep less than 6 hours will have significantly slower reaction times compared to those who sleep 8 hours or more.' What is the null hypothesis for this study?
Question 4
A researcher conducts a study on the effectiveness of a new mindfulness app in reducing stress. Participants are divided into two groups: one uses the app daily for a month, and the other group is placed on a waiting list (control group). To ensure the study has internal validity, what is a crucial factor the researcher must control for?
Question 5
Which of the following research designs is most appropriate for investigating the unique experiences of individuals who have survived a rare psychological trauma, where in-depth qualitative data is required?