Why random sampling and assignment? Random sampling allows
us to obtain a sample representative of the population
. Therefore, results of the study can be generalized to the population. Random assignment allows us to make sure that the only difference between the various treatment groups is what we are studying.
Why is it important for researchers to use random assignment?
Random assignment plays an important role in the psychology research process. Not only does this process help
eliminate possible sources of bias
,2 but it also makes it easier to generalize the results of a tested sample population to a larger population.
Why is it important for researchers to randomize the order?
Why is it important for researchers to randomize the order that participants go through the different conditions of the experiment?
Going through one condition may influence how participants behave in another condition
. Randomizing the order helps minimize the impact of these influences.
Why do researchers use random assignment quizlet?
The purpose of random assignment is
to allow the experimenter to prevent the participants from knowing which condition they were assigned to
. The purpose of random assignment is to equalize participants' characteristics across all conditions of an experiment.
Why do researchers utilize random selection and random sampling?
Why do researchers utilize random selection? The purpose is
to increase the generalizability of the results
. By drawing a random sample from a larger population, the goal is that the sample will be representative of the larger group and less likely to be subject to bias.
What is the advantage of random assignment?
Random assignment of participants helps
to ensure that any differences between and within the groups are not systematic at the outset of the experiment
. Thus, any differences between groups recorded at the end of the experiment can be more confidently attributed to the experimental procedures or treatment.
Why is it important for researchers to randomize the order that participants go through the different conditions of the experiment quizlet?
Why is it important for researchers to randomize the order that participants go through the different conditions of the experiment?
Going through one condition may influence how participants behave in another condition
. Randomizing the order helps minimize the impact of these influences.
What is random assignment in research?
Random assignment is
a procedure used in experiments to create multiple study groups that include participants with similar characteristics
so that the groups are equivalent at the beginning of the study.
What is an example of Random assignment?
Random assignment is where study participants are randomly assigned to a study group (i.e. an experimental group or a control group). … Example of random assignment:
you have a study group of 50 people and you write their names on equal size balls.
Why do researchers use representative sampling versus random sampling quizlet?
A representative sample should be used
which has all the same characteristics as the population
. This allows for conclusions that are based on them to be legitimately generalized to the populations from which they are drawn. Accurately reflects the distribution of relevant variables in the target population.
Why is it important to get a random sample quizlet?
The benefit of using random sampling is that
each subject in the population is equally likely to be selected and the resulting sample is likely representative of the population
. Results are generalizable to the population.
Is random selection or random assignment more important?
Random selection is thus
essential to external validity
, or the extent to which the researcher can use the results of the study to generalize to the larger population. Random assignment is central to internal validity, which allows the researcher to make causal claims about the effect of the treatment.
Why is random so important for determining cause and effect?
Experiments are the best way to determine cause and effect relationships between these variables. … Randomly assigning subjects
helps to eliminate confounding variables
, or variables other than the independent variable that could cause a change in the dependent variable.
Random sampling is important to conducting research in social psychology because
it gives a representation of the population of interest, prevents sampling biases
which eventually gives a fair and more generalized conclusion on the research.
How does random assignment help ensure the internal validity of our interpretation of the data?
2. Random assignment increases internal validity
by reducing the risk of systematic pre-existing differences between the levels of the independent variable
. 3. Studies that use random assignment are called experiments.
Why is it important to use random assignment when determining which research participants will compromise the different treatment groups in the study?
Why is it important to use random assignment when determining which research participants will comprise the different treatment groups in the study?
Random assignment balances out the differences that might naturally exist between participants.
Why is random assignment of participants to groups an important aspect?
Why is random assignment of participants to groups an important aspect of a properly designed experiment?
If the participants are randomly assigned, the researcher can assume that the people in each of the groups are pretty similar
. … It is never acceptable for a researcher to deceive a participant during the research.
What is one example of why researchers must take into consideration the benefits of their research?
An empirical article contains new knowledge or insight. What is one example of why researchers must take into consideration the benefits of their research?
A study should only be conducted if the study's benefits outweigh the risks.
What is random assignment vs random sampling?
So, to summarize, random sampling refers to how you select individuals from the population to participate in your study. Random assignment
refers to how you place those participants into groups
(such as experimental vs. control).
Why do we randomize?
Randomization in an experiment means random assignment of treatments. This way we can eliminate any possible biases that may arise in the experiment. … Randomization in an experiment is important because it
minimizes bias responses
. Good.
Why does random assignment help control for confounding variables?
Why does random assignment help control for confounding variables? By randomly assigning people to groups,
individual differences that may influence the dependent variable are randomly distributed throughout the conditions
, rather than being systematically related to the independent variable.
Which one of the following is the benefit of using random sampling?
Simple random sample advantages include
ease of use and accuracy of representation
. No easier method exists to extract a research sample from a larger population than simple random sampling.
Why is random sampling not always used?
A simple random sample is one of the methods researchers use to choose a sample from a larger population. … Among the disadvantages are
difficulty gaining access to a list of a larger population
, time, costs, and that bias can still occur under certain circumstances.
Why are random sampling and random assignments used quizlet?
random selection is used to obtain a sample that resembles the population (i.e., to obtain a representative sample).
random assignment is used to create groups that are similar to one another
.
What is random sampling in psychology?
Simply put, a random sample is
a subset of individuals randomly selected by researchers to represent an entire group as a whole
. The goal is to get a sample of people that is representative of the larger population.
What is a random sample quizlet?
random sample.
a sample in which every element in the population has an equal chance of being selected
.
What is the relevance of the just world belief to attribution?
A just world is one in which actions and conditions have predictable, appropriate consequences. These actions and conditions are typically individuals' behaviors or attributes. … Lerner hypothesized that the belief in a just world
is crucially important for people to maintain for their own well-being
.
