Below are some scenarios related to research methods, which have been discussed in lecture 04 of your course. Please read those in detail to prepare the assignment. You need to: • identify the research method associated with each example given below and • give logical justification (at least 2 points) why and how the particular method you identified is associated with given examples. Sr.

Below are some scenarios related to research methods, Please read those in detail to prepare the assignment. You need to:

• identify the research method associated with each example given below and

• give logical justification (at least 2 points) why and how the particular method you identified is associated with given examples.

Sr. No	Examples	Identification of research method	Justification
1	A researcher aimed to investigate whether a new drug effectively reduces blood pressure in adults with hypertension. The researcher selected a group of 100 adults with hypertension and randomly divided them into two groups. Group A received the new drug, while Group B received a placebo. Both groups were monitored for changes in their blood pressure over six weeks. The data was collected, and statistical analysis was conducted to determine if there is a significant difference in blood pressure changes between the two groups.
2	A researcher is interested in studying  the eating habits of customers during lunchtime. He sat in a corner of a fastfood restaurant during lunch hours for several weeks. The researcher observed and recorded the behavior of customers, noting what they order, whether they eat alone or with others, and how long they stay. He did not interfere with the customers' behavior and used these observations to draw conclusions about eating habits in this specific context.
3	A researcher aimed to explore whether attending a specialized math program improved students' math skills. He introduced a new after-school math program in a district school and wanted to assess its impact on students' math skills. Students who attended the program were compared to students who did not. The researcher did not randomly assign students to the program due to logistical constraints, so he compared the two groups based on their preexisting characteristics, such as age, previous math performance, and parental involvement.
4	A researcher aimed to investigate how a specific therapy intervention affected a child with autism spectrum disorder (ASD). He selected a child with ASD and provided the child with a novel therapy intervention over several months. The therapist carefully documented the child's progress, including changes in behavior, communication, and social interactions. The therapist used a combination of qualitative observations, interviews, and standardized assessments to assess the impact of the therapy on the child's development.

Solution:

Sr. No	Examples	Identification of research method	Justification
1	A researcher aimed to investigate whether a new drug effectively reduces blood pressure in adults with hypertension. The researcher selected a group of 100 adults with hypertension and randomly divided them into two groups. Group A received the new drug, while Group B received a placebo. Both groups were monitored for changes in their blood pressure over six weeks. The data was collected, and statistical analysis was conducted to determine if there is a significant difference in blood pressure changes between the two groups.	Experimental Research Method	This is an experimental method because the researcher implemented a controlled experiment with random assignment of participants into groups (experimental and control), manipulation of an independent variable (new drug), and statistical analysis to determine the effect on the dependent variable (blood pressure changes).
2	A researcher is interested in studying  the eating habits of customers during lunchtime. He sat in a corner of a fastfood restaurant during lunch hours for several weeks. The researcher observed and recorded the behavior of customers, noting what they order, whether they eat alone or with others, and how long they stay. He did not interfere with the customers' behavior and used these observations to draw conclusions about eating habits in this specific context.	Observational Research Method	This is an observational method as the researcher observed and recorded behavior without intervening. The focus was on naturalistic observation in a real-world setting to draw conclusions about eating habits without manipulating variables.
3	A researcher aimed to explore whether attending a specialized math program improved students' math skills. He introduced a new after-school math program in a district school and wanted to assess its impact on students' math skills. Students who attended the program were compared to students who did not. The researcher did not randomly assign students to the program due to logistical constraints, so he compared the two groups based on their preexisting characteristics, such as age, previous math performance, and parental involvement.	Quasi-Experimental Research Method	This is a quasi-experimental method because the researcher introduced an after-school math program but did not randomly assign students due to logistical constraints. The comparison between students who attended the program and those who did not is based on pre-existing characteristics, resembling an experimental design without random assignment.
4	A researcher aimed to investigate how a specific therapy intervention affected a child with autism spectrum disorder (ASD). He selected a child with ASD and provided the child with a novel therapy intervention over several months. The therapist carefully documented the child's progress, including changes in behavior, communication, and social interactions. The therapist used a combination of qualitative observations, interviews, and standardized assessments to assess the impact of the therapy on the child's development.	Case Study Research Method	This is a case study method as the researcher focused on an in-depth analysis of a single case (the child with ASD) and employed qualitative observations, interviews, and standardized assessments to assess the impact of the therapy on various aspects of the child's development.