experimental research Flashcards
(18 cards)
What is the main objective of experimental research?
To test a hypothesis about a dependent variable by manipulating independent variables and controlling conditions.
What are the two types of experimental designs mentioned?
- Laboratory experiments
- Field experiments
What is a controlled store test?
A hybrid between a laboratory experiment and a test market where test products are sold in selected stores to actual customers.
What is an independent variable (IV)?
A variable that can be manipulated, changed, or altered independently of any other variable.
What does it mean for an independent variable to have a causal influence?
It means that the independent variable is hypothesized to affect the dependent variable.
What is an experimental group?
A group of subjects exposed to the experimental treatment.
What is a control group?
A group of subjects not exposed to the experimental treatment, used for comparison.
What is the dependent variable (DV)?
A criterion or variable that is predicted or explained, expected to be dependent on the manipulation of the independent variable.
What types of dependent variables does Damien frequently use?
- Nominal (categorical) variables
- Discrete Choice Experiment (DCE)
- Best-Worst DCE
What are test units in experimental research?
The subjects or entities whose responses to experimental treatments are observed or measured.
What is randomization in the context of experimental research?
The random assignment of subjects and treatments to groups to control nuisance variables.
What is matching in experimental design?
Assigning subjects to groups to ensure they are matched based on pertinent characteristics.
What is blinding in experiments?
A method used to control subjects’ knowledge of whether they have received the experimental treatment.
What is constant error (bias)?
A systematic bias that occurs when extraneous variables influence the dependent variable every time the experiment is repeated.
What factors affect internal validity?
Factors that can influence the accuracy of the causal relationship being tested.
What are issues of external validity?
Concerns regarding the generalizability of the experimental results to other settings or populations.
Fill in the blank: The first step in experimental design is to decide on a _______.
[field or laboratory experimental design]
What is a Discrete Choice Experiment (DCE)?
An experimental design where subjects choose one alternative out of several options.
