Research Methods & Design Overview

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What is the main purpose of a cross-sectional study design?

To find the prevalence of a phenomenon in a population (correct)

To establish the likely outcome of a future event

To measure change in a phenomenon over time

To investigate a phenomenon that has happened in the past

Which research design involves repeated measurements of the same population over time?

Prospective study

Retrospective study

Longitudinal study (correct)

Pre-test/post-test design

What is the main purpose of a prospective research design?

To investigate a phenomenon that has happened in the past

To establish the likely outcome of a future event (correct)

To find the prevalence of a phenomenon in a population

To measure change in a phenomenon over time

Which research design is characterized by a series of repetitive cross-sectional studies?

Longitudinal study Signup and view all the answers

What is the main purpose of a pre-test/post-test research design?

To measure change in a phenomenon over time Signup and view all the answers

Which research design investigates a phenomenon that has happened in the past?

Retrospective study Signup and view all the answers

Which type of research design is used to determine cause and effect relationships?

Experimental Design Signup and view all the answers

What is the primary purpose of a Grounded Theory study?

To develop an empirical theory from qualitative research Signup and view all the answers

Which type of sampling design gives each element in the population an equal chance of being selected?

Simple random sampling Signup and view all the answers

What is the primary purpose of a Phenomenological study?

To understand the lived experiences of individuals Signup and view all the answers

What is the difference between a population and a sample in research?

Population is the entire group being studied, while a sample is a subset of that group. Signup and view all the answers

What is the primary purpose of a Case Study research design?

To study the entire population or sample as one entity Signup and view all the answers

Which of the following is a subtype of telephone-based sampling?

Both (a) and (b) Signup and view all the answers

What is the Soxhlet method used for?

Repeated boiling with alcohol Signup and view all the answers

What term is used to refer to the residue left after extraction?

Marc Signup and view all the answers

Which of the following is NOT a method of extraction mentioned in the text?

Distillation method Signup and view all the answers

What is the term used for the solvent in the extraction process?

Menstrum Signup and view all the answers

What is the infusion method used for?

Extracting chemical compounds from plant materials Signup and view all the answers

Which sampling method involves selecting elements from naturally occurring groups or clusters?

Cluster sampling Signup and view all the answers

In a random complete block design (RCBD), what is the first step?

Create blocks of homogeneous experimental units Signup and view all the answers

Which non-probability sampling method selects elements based on their availability?

Availability sampling Signup and view all the answers

In a Latin square design (LSD), what is the requirement for treatment combinations?

Treatment combinations must form a square Signup and view all the answers

Which sampling method involves selecting elements from the target population with the assistance of previously selected population elements?

Respondent-assisted sampling Signup and view all the answers

In which sampling method is the population divided into mutually exclusive subcategories, and a target number of elements are sampled from each subcategory?

Quota sampling Signup and view all the answers