Longitudinal cohort studies that produce data measured in person-time are particularly subject to which of the following forms of statistical anomaly?
A. Recall bias
B. Type two censoring
C. Sampling bias
D. Type one censoring
Option d is correct. Longitudinal cohort studies that produce data measured in person-time are particularly subject to type one censoring anomaly.
Longitudinal cohort studies that produce data measured in person-time are particularly subject to which of the...
All changes saved in Drive Question 26: Which of the studies (case-control or cohort) has a larger sample size, costs r and takes longer to complete? For the first six issues below, cite which study is best to use (case-control or cohort study). For last 3 types of bias, cite which study is less likely to have that particular type of bias (case-control or cohort). Answer 26 1) Study a rare disease 2) Study a rare exposure 3) Study multiple...
1. When we conclude treatment are different than it actually is, what type of error we are committing? Type I error Type II error Type III error Type IV error 2.Generalizability is increased by increasing External validity Internal validity Randomization Sampling 3. Recall bias occurs when a. Questions asked to participants are not time limited b. Questions asked to participants are subject limited 4. Selection bias is more common in Case-control study and experimental study Case control and cross sectional...
Question 8 (a) In a prospective cohort study of the effect of ligament injuries on the risk for knee osteoarthritis using electronic questionnaires match each of the sources of bias below with the appropriate category. -A.B.C. Subjects with ligament tears were different in terms of gender and age compared to subjects without tears -A.B.C. People with OA were able to recall their knee injury history more precisely than those without OA -A.B.C. body mass index which can lead to...
A cohort is a group of individuals born around the same time who have been raised under similar circumstances. Which of the following research designs uses cohorts to answer a research question? a. Cross-sectional research design. b. Longitudinal research design. c. Time series design. d. Experimental research design
1. The pretest-posttest nonequivalent control group design is also very commonly used in psychology. Which of the following is NOT a benefit of using this design when random assignment is not possible: It reduces the threat of assignment bias It limits threats from time-related factors It provides some evidence of a potential cause-effect relationship It rules out differential history effects 2. Particularly when they do not include a control group, pre-post designs are most vulnerable to ____________-related threats to internal...
1. The pretest-posttest nonequivalent control group design is also very commonly used in psychology. Which of the following is NOT a benefit of using this design when random assignment is not possible: It reduces the threat of assignment bias It limits threats from time-related factors It provides some evidence of a potential cause-effect relationship It rules out differential history effects 2. Particularly when they do not include a control group, pre-post designs are most vulnerable to ____________-related threats to internal...
1. Describe: a) a control subject in a case-control study, 2. and b) a control subject in an experiment. You may want to describe their disease and/or exposure status. 3. Does "validity" indicate that a test or an instrument is accurate/correct? a. Yes b. No 4. The Healthy Worker Effect is an epidemiological concept that has shown that as a group, people who are employed are healthier than the general population. Because of this researchers must be alert to the...
Which two of the following statement(s) are characteristics of quantitative studies? Quantitative studies… a. Examine text data for themes b. Findings are intended to be generalizable c. Explores concepts or phenomenon from the perspective of the study participant d. Test statistical relationships between concepts e. None of the above
Let A be the event that a person studies a lot. Let B be the event that a person does well on exams. Which of the following is true? Select one. A. The events are disjoint and are independent. B. The events are disjoint and are not independent. C. The events are not disjoint and are not independent. D. The events are not disjoint and are independent.
Which of the following would be using data you have measured to form a conclusion? a. inferential statistics b. Descriptive stastics c. sampling d. none of the above