What research studies the same group of participants over time?
A longitudinal study, like a cross-sectional one, is observational. So, once again, researchers do not interfere with their subjects. However, in a longitudinal study, researchers conduct several observations of the same subjects over a period of time, sometimes lasting many years.
What does it mean to replicate a research study?
Replication is a term referring to the repetition of a research study, generally with different situations and different subjects, to determine if the basic findings of the original study can be applied to other participants and circumstances.
What is a repeating study in order to confirm the results of the original study?
Replicated. to repeat a research study, usually with different participants and in different situations, to confirm the results of the original study. Only $2.99/month.
Why might scientists repeat a study?
Why is the ability to repeat experiments important? Replication lets you see patterns and trends in your results. This is affirmative for your work, making it stronger and better able to support your claims. This helps maintain integrity of data.
What is a method researchers use to gather information?
Chapter 2
| Question | Answer |
|---|---|
| What is the method researchers use to gather info from many people about a particular subject? | survey |
| Name a way that researchers ensure that a sample represents a target population? | selecting people at random |
| What is the term for a predisposition to a certain point of view? | bias |
How do scientists confirm the findings of a study?
Experimental evidence is used to confirm the answers in science. Results are validated (found truthful) when other scientists repeat experiments and come up with the same results. A history of evidence and validations show that the original statements were correct and accurate.
What is a limitation that affects the generalizability of research results?
What is the limitation that affects the generalizability of research results? Small sample size. Dr. Matter is interested in knowing more about brain injury to the occipital vortex, and he studies patients individually in order to gain in-depth knowledge about their behaviors.
What is the greatest drawback of the longitudinal method?
Longitudinal studies require enormous amounts of time and are often quite expensive. Because of this, these studies often have only a small group of subjects, which makes it difficult to apply the results to a larger population.
What are the strengths and weaknesses of a longitudinal study?
List of Advantages of Longitudinal Studies
- They are effective in determining variable patterns over time.
- They can ensure clear focus and validity.
- They are very effective in doing research on developmental trends.
- They are more powerful than cross-sectional studies.
- They are highly flexible.
What type of research is a longitudinal study?
In a longitudinal study, researchers repeatedly examine the same individuals to detect any changes that might occur over a period of time. Longitudinal studies are a type of correlational research in which researchers observe and collect data on a number of variables without trying to influence those variables
Which scenario is an example of a longitudinal research design?
Longitudinal research designs are used to examine behavior in the same individuals over time. For instance, with our example of studying intelligence and aging, a researcher might conduct a longitudinal study to examine whether 20-year-olds become less intelligent with age over time.
Is a longitudinal study the same as a cohort study?
Longitudinal studies allow social scientists to distinguish short from long-term phenomena, such as poverty. However, not all longitudinal studies are cohort studies, as longitudinal studies can instead include a group of people who do not share a common event.
What is problem with longitudinal research?
However, the longitudinal survey also has significant problems, notably in confounding aging and period effects, delayed results, achieving continuity in funding and research direction, and cumulative attrition.
What does longitudinal mean?
1 : placed or running lengthwise The insect’s back is black with yellow longitudinal stripes. 2 : of or relating to length or the lengthwise dimension the longitudinal extent of the building.
How does a longitudinal study benefit a child?
Cohort and longitudinal studies have unique potential to improve understanding of the dynamic processes that shape child development, including trends and trajectories. Longitudinal studies bring a life-course perspective to analysis, and can contribute to understanding the drivers and determinants of child outcomes.
What is a feature of a longitudinal study quizlet?
Longitudinal studies are those that follow one set of participants over time, using research methods such as experiment, survey or observation. The important points about longitudinal studies are that the participants are the same, and that measure are taken over time so that comparisons can be made.
What is the big disadvantage of the case study method quizlet?
Observer bias relates to the potential drawback of observational studies characterized by participants altering their behavior as a result of the researcher’s presence. One major limitation of case studies is that it is often difficult to generalize findings from the individual studied to other individuals.
Which of the following is an advantage of longitudinal designs?
One key advantage of performing longitudinal studies is their ability to show patterns of a variable over time, which is a very powerful way through which researchers come to learn about the relationships of cause and effect.
Which of the following is an example of a cohort effect?
A cohort effect occur when a commonly aged group of people in research indirectly affect results due to their common age-related influences. An example of a cohort effect could be seen in an experiment in which participants use a computer to perform a cognitive task.
What is an example of cohort?
Examples of cohorts commonly used in sociological research include birth cohorts (a group of people born during the same period of time, like a generation) and educational cohorts (a group of people who begin schooling or an educational program at the same time, like this year’s freshman class of college students)
What is meant by the cohort effect?
Definition. The effect that having been born in a certain time, region, period or having experienced the same life experience (in the same time period) has on the development or perceptions of a particular group. These perceptions, characteristics or effects are unique to the group in question.
What is a birth cohort effect?
The birth cohort effect is defined as the variation in the prevalence of age-related maculopathy that arises from the different exposures of each birth cohort
What does age cohort mean?
A group of people born in the same generation. In marketing and popular cultural history, distinctive labels are often retrospectively applied to distinguish the differing values and lifestyles of successive generations (such as baby boomers, generation X, generation Y). Compare peer group.
What is the relationship between secular trends and cohort effects?
Secular trends are a periodic analysis of a disease due to unusual exposures versus cohort studies which deal with the change in occurrence because of a specific exposure.
Are relative risks of 2.0 and 0.5 the same or different in strength of association?
Relative risk of 2.0 and 0.5 are different in strength of association
How is relative risk used in cohort studies?
The measure of association between exposure and disease in cohort studies is the relative risk. A relative risk of 1.0 signifies that the incidence rate is the same among exposed and non-exposed subjects and indicates a lack of association between exposure and disease.
What is the meaning of secular trend?
Secular refers to market activities that unfold over long time horizons, or that aren’t influenced by short-term factors. A secular trend or market is one that is likely to continue moving in the same general direction for the foreseeable future