Which of the following is LEAST suited to providing clear evidence about a causal relationship between the independent and dependent variables?
One-shot case study
.
Which research method is most likely to identify a causal relationship between variables?
One of the main strengths of
experimental research
is that it can often determine a cause and effect relationship between two variables. By systematically manipulating and isolating the independent variable, the researcher can determine with confidence the independent variable’s causal effect on the dependent variable.
Which of the following is least suited to providing clear evidence about a causal relationship between the independent and dependent variables?
Which of the following is LEAST suited to providing clear evidence about a causal relationship between the independent and dependent variables?
One-shot case study
.
What are the requirements for a classical experimental design?
True experimental designs
require random assignment
. Control groups do not receive an intervention, and experimental groups receive an intervention. The basic components of a true experiment include a pretest, posttest, control group, and experimental group.
What is the difference between the classical design and the Solomon four group design?
What is the basic difference between the classical experiment design and the Solomon four-group design? The Solomon four-group design
repeats the classical design but adds groups that are not pretested
. A researcher wants to see if a protein-enriched diet will enhance the maze-running performance of rats.
Is a control group an independent variable?
The independent variable is
“controlled” or held constant in the control group
. A single experiment may include multiple experimental groups, which may all be compared against the control group. The purpose of having a control is to rule out other factors which may influence the results of an experiment.
What is an experiment without a control group called?
A quasi-experiment
is an empirical interventional study used to estimate the causal impact of an intervention on target population without random assignment. … Quasi-experiments are subject to concerns regarding internal validity, because the treatment and control groups may not be comparable at baseline.
What is the only way to determine a causal relationship between two variables?
Fundamentally, the only way to establish a causal relationship is
to rule out other plausible explanations for the correlation
.
What are two research methods for exploring the cause and effect relationships between variables?
There are two research methods for exploring the cause and effect relationship between variables:
Experimentation, and
.
Simulation
.
What is an example of a causal relationship?
Causality examples
Causal relationship is something
that can be used by any company
. … However, we can’t say that ice cream sales cause hot weather (this would be a causation). Same correlation can be found between Sunglasses and the Ice Cream Sales but again the cause for both is the outdoor temperature.
What are the 5 components of experimental design?
The five components of the scientific method are:
observations, questions, hypothesis, methods and results
.
What is the purpose of classical experiment?
classical. html. Experiments are designed to
determine the presence or absence of causal relationships
: whether a particular independent variable causes (influences, impacts, determines) a particular dependent variable.
What are the key features of the classical experimental design?
The classical experimental design has five components,
random assignment, a control group, an experimental group, a pretest, and posttest for each group
.
What are the 4 types of experimental design?
While this type of research falls under the broad umbrella of experimentation, there are some nuances in different research design. Four major design types with relevance to user research are
experimental, quasi-experimental, correlational and single subject
.
Why we use Solomon four group design?
The Solomon four-group design is a
research design that attempts to take into account the influence of pretesting on subsequent posttest results
. … Researchers employ a pretest-posttest design in order to demonstrate that exposure to a treatment led to differences between the pretest and posttest scores.
What is the main advantage of the Solomon four group design?
It
allows the researcher to exert complete control over the variables and allows the researcher to check that the pretest did not influence the results
. The Solomon four group test is a standard pretest-posttest two-group design and the posttest only control design.
