External Validity. Refers to the extent to which the results of a research design can be generalized beyond the specific way the original experiment was conducted .
What is external validity in psychology?
External validity is another name for the generalizability of results , asking “whether a causal relationship holds over variation in persons, settings, treatments and outcomes.” 1 A classic example of an external validity concern is whether traditional economics or psychology lab experiments carried out on college ...
What is meant by external validity quizlet?
External Validity. the extent to which the results of the experiment can be generalized or extended to people, settings, times, measures , and other characteristics than those in the original experiment.
What is external validity quizlet abnormal psychology?
External validity. External validity is the validity of generalized (causal) inferences in scientific research , usually based on experiments as experimental validity. In other words, it is the extent to which the results of a study can be generalized to other situations and to other people.
In what way are internal validity and external validity different quizlet psychology?
Terms in this set (18)
The essential difference between internal and external validity is that internal validity refers to the structure of a study and its variables while external validity relates to how universal the results are.
What are threats to external validity?
There are seven threats to external validity: selection bias, history, experimenter effect, Hawthorne effect, testing effect, aptitude-treatment and situation effect .
What is the difference between external validity and internal validity?
Internal and external validity are concepts that reflect whether or not the results of a study are trustworthy and meaningful. While internal validity relates to how well a study is conducted (its structure), external validity relates to how applicable the findings are to the real world .
What is external validity in psychology example?
the extent to which the results of research or testing can be generalized beyond the sample that generated them . For example, if research has been conducted only with male participants, it cannot be assumed that similar results will apply to female participants.
Why is external validity important?
External validity helps to answer the question: can the research be applied to the “real world”? If your research is applicable to other experiments, settings, people, and times , then external validity is high. If the research cannot be replicated in other situations, external validity is low.
How do you determine external validity?
Results External validity refers to the question whether results are generalizable to persons other than the population in the original study. The only formal way to establish the external validity would be to repeat the study for that specific target population .
Why do we do natural experiments asks a student?
“Why do we do natural experiments?” asks a student. “After all, each disaster that causes a natural experiment is unique .” A good answer would be, “Using natural experiments, researchers have learned quite a lot about... ... To justify analogue experiments with animals, researchers must...
Which of the following is a limitation of the case study?
Limitation: Case studies cannot be replicated and a single case study cannot be generalized to a wider population. Limitation: There is a potential risk for researcher bias in case studies, in that the researcher’s own beliefs can influence the way the data are collected and analysed.
Which factor is a component of informed consent psychology quizlet?
Case law and statutory regulations concurred that the three key elements of informed consent are that it must be knowing, competent, and voluntary .
Why is internal validity more important than external validity?
Internal validity ascertains the strength of the research methods and design . Conversely, external validity examines the generality of the research outcomes to the real world. Internal Validity determines the extent to which the conclusion is warranted.
What is internal validity in psychology quizlet?
Internal validity means. the observed differences in the dependent variable are directly related to the independent variable and not due to some other unintended variable .
What are the threats to internal validity?
History, maturation, selection, mortality and interaction of selection and the experimental variable are all threats to the internal validity of this design.
