Worksheetslecture 1 exp
Total questions: 10
Worksheet time: 5mins
What is the main difference between observational and experimental studies?
Observational studies have a control group, while experimental studies do not.
Observational studies do not involve any intervention or experiment, while experimental studies entail manipulation of the study factor.
Observational studies involve manipulation of the study factor, while experimental studies do not.
Observational studies track people forward in time, while experimental studies work in reverse.
What is the purpose of Descriptive Studies?
To describe the potential association between exposure and outcome.
To compare the occurrence of an outcome between two groups.
To track people forward in time from exposure to outcome.
To describe the occurrence of an outcome without a control group.
In Analytic Studies, what is the basic question being asked?
What is the occurrence of an outcome?
Is there a comparison between two groups?
Are exposure and disease linked?
How many variables are being manipulated?
What is the main characteristic of Cross-sectional studies?
They track people forward in time from exposure to outcome.
They measure both exposure and outcome at one time point.
They work in reverse, tracing back from outcome to exposure.
They involve randomization of subjects to treatment groups.
What is the purpose of Case-Control Design?
To track people forward in time from exposure to outcome.
To compare the occurrence of an outcome between two groups.
To compare cases with controls based on exposure.
To study the relationship between one variable and another.
What is the Independent Variable in Experimental Design?
The group that remains the same for comparison.
The group that receives the treatment being investigated.
The variable that will be manipulated, the 'cause' or treatment variable.
The variable that is the 'effect' or outcome of manipulating the independent variable.
What is the purpose of Experimental Research Design?
To investigate causal relationships and study the relationship between variables.
To track people forward in time from exposure to outcome.
To compare cases with controls based on exposure.
To describe the potential association between exposure and outcome.
What is the main goal of researchers using experimental research?
To track people forward in time from exposure to outcome.
To describe the occurrence of an outcome without a control group.
To manipulate one variable to see if it has an effect on the other variable.
To observe what happens without any intervention or experiment.
What is the purpose of the Control Group in Experimental Design?
To remain the same for comparison with the experimental group.
To receive the treatment being investigated.
To manipulate the independent variable.
To track people forward in time from exposure to outcome.
What is the significance of Randomization in Experimental Design?
It ensures that the study population is free of disease.
It allows for comparison between cases and controls.
It helps in tracking people forward in time from exposure to outcome.
It minimizes bias and ensures groups are comparable.
