The weaknesses of cross-sectional studies include
the inability to assess incidence, to study rare diseases, and to make a causal inference
. Unlike studies starting from a series of patients, cross-sectional studies often need to select a sample of subjects from a large and heterogeneous study population.
What is a major disadvantage of cross-sectional research quizlet?
A disadvantage of cross-sectional research is that it
just tells researchers about differences, not true changes
. … Because researchers cannot directly manipulate age, there are other differences each age group might have besides just age.
Which of the following is a problem with cross sectional research?
A main disadvantage of cross-sectional designs is that… Which of the following is a common obstacle that cross-sectional designs should overcome?
Trouble obtaining equivalent measures
. take more than one observation whereas cross-sectional studies usually take only measurements once.
What is one of the major problems of using cross-sectional design?
Potential bias in cross-sectional studies
Non-response
is a particular problem affecting cross-sectional studies and can result in bias of the measures of outcome. This is a particular problem when the characteristics of non-responders differ from responders.
What is a limitation of cross-sectional research?
The primary limitation of cross-sectional studies is that
the temporal link between the outcome and the exposure cannot be determined because both are examined at the same time
. … With a cross-sectional study, it is impossible to determine whether the inability to reproduce exacerbates the stereotypies or the contrary.
What level of research is a cross-sectional study?
Cross sectional study designs and case series form
the lowest level of the aetiology hierarchy
. In the cross sectional design, data concerning each subject is often recorded at one point in time.
What is an example of a cross-sectional study?
A cross-sectional study involves looking at data from a population at one specific point in time. … For example, researchers studying
developmental psychology
might select groups of people who are different ages but investigate them at one point in time.
What is the main purpose of a cross-sectional study quizlet?
compares the prevalence of a disease between exposed and unexposed groups
.
What does it mean for this study to be cross-sectional quizlet?
Cross-sectional studies are
observational studies that collect information about individuals at a specific point in time or over a very short period of time
. … A disadvantage to this type of study is that it requires individuals to recall information from the past.
What are cross-sectional studies and longitudinal studies and why is it important to know which method was used quizlet?
Longitudinal studies are relatively simple to conduct. Cross-sectional studies cannot separate the effects of age and generation. A benefit of longitudinal studies is
that researchers can collect data on the same people over time
. Cross-sectional studies collect data of different groups of people at the same time.
Why cross-sectional data do not determine cause and effect?
Cross-sectional data cannot be used to infer causality
because temporality is not known
. They may also be described as censuses. Cross-sectional studies may involve special data collection, including questions about the past, but they often rely on data originally collected for other purposes.
Is there a control group in a cross-sectional study?
No there can’t be a control group
. The methodology does not allow it. Control is mainly related to experimental and quasi-experimental designs (and involves randomisation, manipulation of variables etc) – not descriptive cross-sectional surveys.
How many participants should be in a cross-sectional study?
Within a cross-sectional study a sample size of
at least 60 participants
is recommended, although this will depend on suitability to the research question and the variables being measured.
What is an advantage of a cross-sectional study?
Cross-sectional studies permit
researchers an opportunity to study multiple outcomes and exposures simultaneously
. That allows multiple variables to be accessed simultaneously, which increases the accuracy of an assessment on the burdens of a data point within the specific population group.
What is the measure of association in a cross-sectional study?
Background: The most commonly used measures of association in cross-sectional studies are
the odds ratio (OR) and the prevalence ratio (PR)
. Some cross-sectional epidemiologic studies describe their results as OR but use the definition of PR.
Why is cross-sectional design a limitation?
However, it is important to be aware of the predictive limitations of cross-sectional studies: “the primary limitation of the cross-sectional study design is that
because the exposure and outcome are simultaneously assessed, there is generally no evidence of a temporal relationship between exposure and outcome
.”
