Research

What is the main purpose of experimental research design

• Describe natural occurrences

• Explore strengths in group characteristics

• Investigate the impact of an intervention on a dependent variable

• Study the association between two variables

Which element is essential in an experimental research design

• Randomization of participants

• Surveying the target population

• Describing patterns of disease

• Exploring demographic characteristics

What distinguishes quasi experimental design from experimental research design

• Manipulation of independent variable

• Randomization of participants

• Lack of randomization

• Description of naturally occurring phenomenon phenomena

What does correlation design primarily the study

• Causality between variables

• The impact of interventions

• Association between two variables

• Trends in group characteristics

How is positive correlation defined

• One variable increases and the other variable decreases

• Both variables increases simultaneously

• Inverse relationship between variables

• Direct relationship between variables

What is the focus of descriptive research design

• Investigating interventions

• Studying naturally occurring phenomena

• Exploring trends in group characteristics

• Testing hypothesis under controlled conditions

Which type of research explores trends in the characteristic of a group of people

• Demographic research

• Epidemiological research

• Survey research

• Quasi experimental research

What does sampling in quantitative research involve

• Describing patterns of disease

• Investigating the impact of interventions

• Selecting a subgroup from the population

• Exploring naturally occurring phenomena

What is the key characteristic of probability sampling

• Random selection of participants

• Purposeful selection by the researcher

• Recruiting readily available participants

• Choosing people from different subgroups

What is non-probability sampling

• Random selection by the researcher

• Convenience sampling of available participants

• Purposeful selection based on suitability

• Systematically choosing every nth case from the population