Podcast
Questions and Answers
What is the primary characteristic of experimental research?
What is the primary characteristic of experimental research?
- It involves controlling conditions and manipulating independent variables (correct)
- It focuses on observing and documenting natural phenomena
- It emphasizes qualitative analysis over quantitative analysis
- It relies solely on historical data and records
Why is experimental research considered a powerful tool?
Why is experimental research considered a powerful tool?
- It depends heavily on theoretical models and simulations
- It focuses on correlational analysis rather than causal relationships
- It relies on anecdotal evidence and personal experiences
- It allows direct assessment of how one variable influences another (correct)
What must be done with extraneous variables in experimental research?
What must be done with extraneous variables in experimental research?
- They must be given equal weight as the independent variables
- They must be purposely manipulated
- They must be completely ignored
- They must be held constant (correct)
What is crucial for understanding how different factors influence the outcome of a study?
What is crucial for understanding how different factors influence the outcome of a study?
Which variable is known as the 'cause' and can be manipulated or altered?
Which variable is known as the 'cause' and can be manipulated or altered?
What type of variable is expected to be dependent on the manipulation of the independent variable?
What type of variable is expected to be dependent on the manipulation of the independent variable?
What is used to control subjects’ knowledge of whether or not they have been given the experimental treatment?
What is used to control subjects’ knowledge of whether or not they have been given the experimental treatment?
What type of assignment is based on chance and provides 'control by chance'?
What type of assignment is based on chance and provides 'control by chance'?
Which term indicates whether the independent variable was the sole cause of the change in the dependent variable?
Which term indicates whether the independent variable was the sole cause of the change in the dependent variable?
What term refers to the extent to which the results of an experiment are applicable to the real world?
What term refers to the extent to which the results of an experiment are applicable to the real world?
Which type of experiment is characterized by high control, high internal validity, but low external validity?
Which type of experiment is characterized by high control, high internal validity, but low external validity?
'One-shot design' and 'Static group design' are examples of which type of experimental design?
'One-shot design' and 'Static group design' are examples of which type of experimental design?
'A single measure is recorded after the treatment is administered' describes which pre-experimental design?
'A single measure is recorded after the treatment is administered' describes which pre-experimental design?
'Subjects in experimental group are measured before and after treatment is administered' describes which pre-experimental design?
'Subjects in experimental group are measured before and after treatment is administered' describes which pre-experimental design?
What classification does a randomized controlled trial belong to in social sciences experimental study design?
What classification does a randomized controlled trial belong to in social sciences experimental study design?
What is a characteristic of quasi-experimental designs?
What is a characteristic of quasi-experimental designs?
Study Notes
- The text discusses experimental epidemiology and its designs, with a focus on the importance of experimental research and definitions related to it.
- Experimental research is a method for investigating cause-and-effect relationships by controlling conditions and manipulating independent variables to observe effects on dependent variables.
- Key components of experimental research include the importance of experimental design, definitions of dependent and independent variables, confounding variables, blinding, randomization, experimental treatments, and internal and external validity.
- Laboratory and field experiments differ in terms of environment, demand artifacts, internal validity, and external validity.
- The text also discusses the experimental study design classifications in social sciences and pre-experimental designs, which include one-shot and one-group pretest-posttest designs.
- One-shot studies involve measuring a single variable after treatment administration, while one-group pretest-posttest designs measure the same individuals before and after the treatment, but lack a control group.
- Pre-experimental designs are often used in exploratory research, but lack proper control for external or internal validity and cannot be classified as true experiments.
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Description
Explore the subtopics and lesson outcomes of experimental epidemiology, including the types of designs and the process of conducting experimental research to test hypotheses and establish causality.
