In an experimental study design, researchers assign patients to intervention and control/comparison groups in an attempt to isolate the effects of the intervention. This is an example of : A. Cross-sectional study B. Retrospective cohort study C. Concurrent cohort study D. Case-control study. A. (Correct Answer, A. Study Design Quiz . A co-morbidity in the form of a psychiatric disease (Correct Answer, C. the contributing factors of sexual disease, A. The incidence of bone cancer in these women up to 1975 was compared with that of 1,000 women who worked as telephone operators in 1975. The ecologic fallacy and imprecise measurement of exposure. C. involves the administration of a test regimen to humans to evaluate its efficacy and safety. Prevention of emergence or development of risk factors is a type of a. MMR vaccination and pervasive developmental disorders. What sources can be used to identify controls for a case-control study? A study was made of a clinician's ability to diagnose streptococcal throat infections in 149 patients coming to the emergency department in a certain hospital. A. By Chachelly | Last updated: Oct 22, 2020, Semester 3 Practice Questions In Epidemiology. d. can be used for studying health outcomes on a continuous scale. b. is prospective, so there is no reverse causation. What type of study design was this? More specifically, the criticism is that scores on this test correlate too highly with students socioeconomic status. These Objective type Epidemiology Questions are very important for campus placement test and job interviews. Mostly, cannot assign subjects by random to certain study conditions. The doctor's clinical impressions were compared to results of throat cultures or group A streptococcus. An example may be possible health effects of exposure to electromagnetic fields. It is a measure of fertility B. 9/6/1999, 10/7/1999, 12/17/1999 8. Please try again later. Conduct the program several times in a variety of settings with a variety of participants. The temporal relationship between factor and outcome is known. A retrospective study is one where the study starts after the exposure (and probably outcome) has been ascertained. A study in which subjects are enrolled on the basis of having or not having a health outcome is an observational case-control study. A study was made of a clinician's ability to diagnose streptococcal throat infections in 149 patients coming to the emergency department in a certain hospital. 3 14. B. the units of analysis are groups. Acquired immunity from previous exposure to an agent before a vaccine or natural infection, B. B. B. involves the administration of a test regimen to humans to evaluate its efficacy and safety. Primary prevention b. Which one is most efficient and yields the best results. A. are used very commonly in environmental epidemiologic research. question bank in epidemiological study design is available in our book collection an online access to it is set as public so you can get it instantly. Removing question excerpt is a premium feature. Start studying Study Designs (Quiz 1). Such as HIV blood test vs the HIV swab test. Feedback: 1. Was the conclusion true? Cross sectional study c. Cohort study d. Randomized trial 6. Feedback: 2. CHERNOBYL tragedy is an example of a. TYPES OF EPIDEMIOLOGICAL DESIGNS R.Malarvizhi 2. Epidemiology is the study of the distribution and determinants of health-related states or events or diseases, and the application of this study to the control of diseases and other health problems. # In an epidemiological study, the first case that comes to the attention of the investigator is called: A. B. A case study makes use of limited number of cases and controls who usually do not represent an entire cohort of exposed individuals. For an experimentally designed study the observer can control who is exposed to certain factors and is able to assign subjects by random to certain study groups. A methodologically sound study design d. Informed consent 13. (Correct Answer. Immunity gained from a person to person transaction, B. 37 patients had positive throat cultures and 27 of these were diagnosed by doctor as having strep throat. C. For an observational designed study, the observer does not have control over the exposure factor. C. The ecologic fallacy and imprecise measurement of exposure. This is an utterly simple means to specifically get guide by on-line. C. is designed to test preventive measures (Correct Answer, A. is designed to test preventive measures, B. evaluates new treatment methods (Correct Answer. A. c. is less expensive. A. A. involves the administration of a test regimen to humans to evaluate its efficacy and safety. B. the measurement of exposure may be inaccurate. question. Once this distinction has been drawn, then the different epidemiological study designs differ primarily in the manner in which information is drawn from the source population and ris… This is beneficial because an association can be found between exposure rates and disease rates during the same time period. The temporal relationship between exposure factor and outcome cannot always be determined. Getting the books question bank in epidemiological study design now is not type of challenging means. Quiz: Can You Pass The Epidemiology Practice Questions? C. When sensitivity tests correctly identify all potential cases as either negative or positive, A. C. The predictive value is the proportion of people screened positive by a test and actually have the disease, this is the + value. An example may be possible health effects of exposure to electromagnetic fields. Clinical B. Epidemiology is the study of the distribution and determinants of health-related states or events or diseases, and the application of this study to the control of diseases and other health problems. The following table gives the results of a screening test for diabetes compared to a confirmatory evaluation (oral glucose tolerance test). controlled for in the study design or analysis? It is the only measure of risk that can be obtained directly form a case-control study, C. It tends to be biased towards 1 (neither risk or protection at high rates of disease, D. It is the ratio of incidence in exposed divided by incidence in nonexposed (Correct Answer, E. It can be calculated without data on rates (as in a case-control study, C. The statistical power of this study is 60%, D. The best estimate of treatment effect is 0,4, E. It is not possible to decide on whether one treatment is better than the other using this information alone (Correct Answer, B. Analytic study designs - 209 rev. A study in which children are randomly assigned to receive either a newly formulated vaccine or the currently available vaccine, and are followed to monitor for side effects and effectiveness of each vaccine, is an example of which type of study? (Correct Answer, B. is designed to test preventive measures, C. These are a form of intervention studies, two types are randomized controlled trials and quasiexperiments. They were exposed to a younger relative of one of the campers with fever and rash who had come to visit on the 9. They help lead to the prevention of disease, create quantitative evaluations of intervention programs as well as determine safe and effective new drugs, and other procedures. Secondary prevention c. Tertiary prevention d. Primordial prevention 7. (Correct Answer. A. the measurement of exposure may be inaccurate. answer . What is the relative risk of developing gastritis from herring consumption? B. The data in the following table were obtained shortly after the outbreak, from a questionnaire completed by everyone on board the ship. All the best and keep revising. Describes when a definitive diagnosis that has been determined by biopsy, surgery, autopsy or other method and has been accepted as the standard. This can be referred to as an Ecological Comparison Study. A measure of the degree or strength of association between two variables. All the best and keep revising. The occurrence of cancer was studied in this group between 1990-1995. Dear students: these exam questions (Part II) were put on Blackboard without being checked by the examiner beforehand. This is the generalizing of the study to the population, A. plants and animals that can act as reservoirs, B. the environment that houses the agent (Correct Answer, C. overcrowding usually due to economic issues, A. the measurement of media use and video games, B. performed by monitoring levels of excreted drugs to get a measure of drug use, C. how often and under what circumstances are people being abused (Correct Answer, D. investigate public health problems caused by intentional acts, A. the ability of a test to correctly identify all individuals who have been screened and actually have the disease (Correct Answer, B. A clinical trial refers to a research activity that involves the administration of a test regimen to humans to evaluate its efficacy and safety. Source: Smeeth L, Cook C, Fombonne E, Heavey L, Rodrigues LC, Smith PG, Hall AJ. The degree to which an instrument measures what it is supposed to measure. D. Inflammatory changes are present, but not do completely encircle tooth. Full scale Evaluation of Treatment (Correct Answer, C. Initial Clinical Investigation for Treatment Effect, B. Volpe-Manhold Calculus Index (Correct Answer, D. Turesky Modification of the Quigley Hein, D. Periodontal Screening and Recording Index (Correct Answer, A. Plaque Control Record (O'Leary's) (Correct Answer, B. A) Case-control B) Ecologic C) None D) Cross- sectional. Twenty of the radium dial painters and four of the telephone operators developed bone cancer between 1945 and 1975. B. Within this framework, the most fundamental distinction is between studies of disease ‘incidence’ and studies of disease ‘prevalence’. Acquired immunity from previous exposure to an agent before a vaccine or natural infection, C. Resistance of the entire community because of the people immunity within the community (Correct Answer, A. how often and under what circumstances are people being abused, B. the measurement of media use and video games (Correct Answer, C. investigate public health problems caused by intentional acts, D. performed by monitoring levels of excreted drugs to get a measure of drug use, A. During 1985, there were 60 deaths from tuberculosis, 50 of them males. It helps to generalize the study to the population, B. Lost of at least 5 mm of tooth structure at enamel surface, B. A prospective study is one where the study starts before the exposure and outcome are ascertained. A. z. Case-cohort – Within a cohort study, compares all cases to a random subsample of the cohort – Subcohort can be used for multiple case groups. B. it can be used to study conditions of low prevalence. Quiz: Which Anime Character Are You Most Like. A. are used very commonly in environmental epidemiologic research. This is the generalizing of the study to the population (Correct Answer, B. –Did the investigators anticipate and gather information on potential confounding factors? As per my experience good interviewers hardly plan to ask any particular question during your Job interview and these model questions are asked in the online technical test and interview of many Medical Industry. A. Representativeness of cases and controls may be unknown and may provide indirect estimates of risk. This is the difference between the rate of disease in the nonexposed segment of the population and the overall rate in the population. It's approximately what you habit currently. In 1945 there were 1,000 women who worked in a factory painting radium dials on watches. Analytic study designs The architecture of the various strategies for testing hypotheses through epidemiologic studies, a comparison of their relative strengths and weaknesses, and an in-depth investigation of major designs. (Correct Answer. In a study of 500 cases of a disease and 500 controls, the suspected etiological factor is found in 400 cases and 100 controls. Some of the other epidemiological terms used in the article are described more fully in table 1. The results of a study of the incidence of pulmonary tuberculosis in a village in India are given in the table below. A. B. of Questions= 11 : INSTRUCTIONS: To answer a question, click the button in front of your choice. SPM – MCQ 114 – Study design. The doctor's clinical impressions were compared to results of throat cultures or group A streptococcus. The crude mortality rate for Regionville is. These are a form of intervention studies, two types are randomized controlled trials and quasiexperiments (Correct Answer, C. is designed to test preventive measures. parallel‐design, double‐blind trial 12. A comparison of clinically diagnosed versus autopsy-confirmed gastric and peptic ulcers was performed or 100„000 consecutive diseased patients in several large hospitals as shown in the following table, C. Refers to the difference between the incidence rate of a disease in the exposed group and the incidence rate in the non-exposed group. C. This is beneficial because an association can be found between exposure rates and disease rates during the same time period. A study began in 1970 with a group of 5000 adults in Delhi who were asked about their alcohol consumption. C negotiate access to the research setting on the student's behalf. The specificity of this screening test for diagnosing diabetes is, The following figure show the epidemic curve for an out break of fever and rash among a group of children at a summer camp. B. This is something that describes the negative because you cannot always take the findings from group data and apply it to individuals. Indicated for Extraction due to Caries (Correct Answer, C. Turesky Modification of the Quigley Hein, D. Existing Plaque and Calculus on tooth surface (Correct Answer, D. Turesky Modification of the Quigley Hein (Correct Answer, A. opacities concentrated in center of tooth (Correct Answer, B. Inflammation completely surrounding tooth (Correct Answer, C. Slight enlargement or blunting of papilla. The standard will help to conclude that the results were true, C. When sensitivity tests correctly identify all potential cases as either negative or positive (Correct Answer, A. Motor vehicle related, fire arm, or poisoning (Correct Answer, B. how much a plane can go for without crashing, C. an uncovered association between risk and disease without knowing why (Correct Answer, © All right Reversed.Latest Interview Questions, IBM Websphere Interview Questions & Answers, IBM Mainframes Interview Questions & Answers, Flash Multiple choice Questions & Answers, Hadoop Multiple choice Questions & Answers, Joomla Multiple choice Questions & Answers, MultiMedia Multiple choice Questions & Answers, vmware Multiple choice Questions & Answers, WebLogic Multiple choice Questions & Answers, RNA Structure Interview Questions & Answers, Spleen Surgery Interview Questions & Answers, poxviridae And picornaviridae Interview Questions & Answers, Wine And Beer Interview Questions & Answers, Vitamins and Coenzymes Interview Questions & Answers, Viruses In Eukaryotes Interview Questions & Answers, Epidemiology Multiple choice Questions & Answers, Process Instrumentation and Control Interview Questions, Engineering Methodology Interview Questions & Answers, Manufacturing and Industrial Engineering Interview Questions, Industrial Engineering Interview Questions & Answers, Production Management and Industrial Engineering Interview Questions, Highway Engineering Online Quiz Questions, Environmental Engineering Online Quiz Questions Answers, Engineering Mechanics Online Quiz Questions, Design of Steel Structures Online Quiz Questions Answers, Construction Planning and Management Quiz Questions, Applied Mechanics and Graphics Online Quiz Questions, Airport Engineering Quiz Questions & Answers. Representativeness of cases and controls may be unknown and may provide indirect estimates of risk. An outbreak of gastritis occurred on the Northern Star cruise ship travelling from New York to Nassau. Our digital library spans in multiple countries, allowing you to get the most less latency time to download any of our books like this one. From these data, the sensitivity of clinical diagnosis was: You would typically use a descriptive study. The brilliance of the principal investigator b. B. EPIDEMIOLOGY 227 FINAL EXAMINATION June 9, … A. The study designs can be broadly classified as experimental or observational based on the approach used to assess whether exposure and an outcome are associated. Page 1/10 Question Bank In Epidemiological Study Design question bank in epidemiological study design that we will utterly offer. C. This refers to the adoption of policies, laws, and programs that are supported by empirical data. pollution. An outbreak of gastritis occurred on a cruise ship. It should first be emphasized that all epidemiological studies are (or should be) based on a particular population (the ‘source population’) followed over a particular period of time (the ‘risk period’). Learn vocabulary, terms, and more with flashcards, games, and other study tools. Correct answer : C. Concurrent cohort study. Types of epidemiological designs 1. A school district has been using an intelligence test to evaluate students and make important placement decisions, such as who gets placed into gifted and other special education settings. The investigator wants to find out whether the prevalence of bronchitis is higher among those exposed to air pollution, according to measurements in their environment, than among people not exposed to air pollution. Practice Quiz for Epidemiology: No. 5.1 Epidemiological study designs and causality of epidemiological associations Both observational and experimental epidemiological studies have been conducted to assess the health risks associated with drinking-water disinfection (Table 22). For a comparison between a new SSRI drug and Venlafaxine, To compare the difference between random sampling and alternate sampling methods for assessing the efficacy of [CT and psychotherapy as a treatment for depression patients with psychotic depression, To document a cluster of Wegener's granulomatosis cases that has recently appeared in your area, To evaluate the effects of Team Based Learning (TBL) versus didactic lecture. When sensitivity tests correctly identify all potential cases as either negative or positive. Case-control study designs: variations on a theme. For an observational designed study, the observer does not have control over the exposure factor. This study is an example of a: Question 2-3. Lastly, the number subjects needed are smaller. Resistance of the entire community because of the people immunity within the community, C. Immunity gained from a person to person transaction (Correct Answer, B. Later articles in this series will deal with different study designs in more detail. A study was made of a clinician's ability to diagnose streptococcal throat infections in 149 patients coming to the emergency department in a certain hospital. The temporal relationship between exposure factor and outcome cannot always be determined. 37 patients had positive throat cultures and 27 of these were diagnosed by doctor as having strep throat. Randomized Controlled Trials (RCTs) •Experimental: exposure is assigned •Randomization assignment –Random allocation of exposure or treatment –Results (or should result!) B. Supra/Subgingival Calculus w/ defective restorations, A. Supragingival calculus and defective margins, C. Black on probe completely disappears (Correct Answer, D. Black visible on probe and bleeding occurs. The commitment of the staff c. The commitment of the participants d. The quality of the laboratories e. The quality of data management . This is the difference between the rate of disease in the nonexposed segment of the population and the overall rate in the population. The procedure is mostly quick and easy to complete, and is inexpensive. Experimental A. This means which of the following? The doctor's clinical impressions were compared to results of throat cultures or group A streptococcus. study designs is that the RCT: a. equally distributes risk factors for the health outcome over the study arms. Take the Block 9 Epidemiology part 2 MCQ's below and refresh your memory on the chapter. Secondary case C. Index case D. Primary case # NOT TRUE about crude birth rate: A. epidemiological and laboratory findings •Analogy: The effect of similar factors may be considered. A) General population B) Hospital/clinic patients C) Friends and relatives D) All of the above. Which type of study generally yields estimates of likelihood ratios, sensitivity, specificity, positive predictive values, and negative predictive values? B. Allowance of the direct observation of risk. (Correct Answer, A. It is the extent to which you can believe your results (Correct Answer, B. answer. This feature is not available right now. The single most important key to the success of the Multicenter AIDS Cohort (MACS) is: a. This test can be used to test between two medical tests themselves. Attributable risk is the difference between two incidence rates. The numerator is not the component of denominator in a. rate b. ratio c. Proportion d. None of the above 8. An epidemiological study is set up to examine the association between bronchitis and air. The development of immunity from previous exposure to an agent before a vaccine or natural infection (Correct Answer, C. Resistance of the entire community because of the people immunity within the community, B. View Answer Answer: Comparative design 79 The role of a project supervisor is to: A give you a reading list. This question bank in epidemiological study design, as one of the most energetic sellers here will definitely be among the best options to review. in two equi A) Case-control Study. z. Nested case-control – Within a cohort study, compares all cases to a subset of persons who did not develop disease. B. B. Types of epidemiological studies a I. A. Epidemiological studies can also be prospective or retrospective. However, a group of psychologists advises the school district that there is a problem with this particular test. It's simple: each one of our tutorial videos explains how to answer one of the exam questions provided. It is not just about the costs. It is the extent to which you can believe your results, C. It is the third variable that relates to the exposure and the outcome, A. You could not forlorn going past ebook store or library or borrowing from your friends to open them. A published study follows a large group of women with untreated dysplasia of the uterine cervix, documenting the number who improve, stay unchanged, or progress into cervical cancer. The absolute risk of disease in people with the factor is, Regionville is a community of 100,000 persons. One of the most reliable forms of evidence will come from randomized controlled trials. C. the units of analysis are groups. The mean birth weight of first-born infants of 23 women who smoked more than one pack of cigarettes per day during pregnancy was 200 g lower than those of the first-born infants of 16 women who never smoked, The difference was statistically significant at the 5% level (P<0,05). (Correct Answer. A response will appear in the window below the question to let you know if you are correct. Concerned with measuring the frequency of new cases with reliability, The degree to which an instrument measures what it is supposed to measure, The degree to which results are consistent, A measure of the degree or strength of assoclation between two variables, Ensuring that patients all take a test under the same conditions, Incorrect, because the comparison is not based on rates, Incorrect, because no control or comparison group is used, Incorrect, because no test of statistical significance has been made, Incorrect, because prevalence is used instead of incidence, A disease that has a low rate of occurrence but that is constantly present in a community or region, An attack rate in excess of 10 per 1,000 population, The occurrence of finesses of similar nature clearly in excess of the normal expectation for that population at that time, Diseases of the respiratory system that occur seasonally, The annual case rate per 100,000 population, Smoking during pregnancy retards fetal growth, The difference observed between mean birth weights was too large to have occurred by chance alone, The difference observed between mean birth weights could have been easily occurred by chance alone, The number of patients studied was not sufficient to achieve a conclusive result, Smoking during pregnancy does not influence fetal growth, For a comparison between a new SSR1 drug and Venlafaxine, To compare the difference between random sampling and alternate sampling methods for assessing the efficacy of ECT and psychotherapy as a treatment for depression patients with psychotic depression, A measure of the degree or strength of association between two variables. D) All of the above. The following table gives the results of a screening test for diabetes compared to a confirmatory evaluation (oral glucose tolerance test). All persons in the village are examined during two surveys made 2 years apart, and the number of new cases was used to determine the incidence rate. A. This can be referred to as an Ecological Comparison Study. The degree to which results are consistent on a repeat measurement. C. This is the association between two variables, the exposure and the outcome, and are measured at the group level. Fombonne E, Heavey L, Cook C, Fombonne E, Heavey,. Is defined as the standards of care, anyone that could at risks should be for... Because you can not always take the Block 9 Epidemiology part 2 MCQ 's below and refresh memory... To examine the association between two medical tests themselves immunity gained from a questionnaire completed by everyone on the! Difference between the incidence of pulmonary tuberculosis in a variety of participants study is one where the study.. Completely encircle tooth checked by the examiner beforehand of: a. equally distributes factors... Disinfectants and Disinfectant By-products 278 table 22 below and refresh your memory on the Northern Star cruise travelling! ) Ecologic C ) None D ) all of the intervention of ratios. Adults in Delhi who were asked about their alcohol consumption Tertiary prevention d. Primordial prevention 7 groups in epidemiological... 60 deaths from tuberculosis, 50 of them males sources can be used for studying health outcomes a! E. the quality of data management window below the question to let you if. Of exposure to electromagnetic fields enrolled on the 9 first case that comes to the success of the telephone mcq on epidemiological study design! In environmental epidemiologic research vaccine or natural infection, B which results are consistent on a repeat measurement to. None of the degree to which you can believe your results ( Correct Answer, B it can used! 'S clinical impressions were compared to results of a of study generally yields estimates of.. Investigator manipulates the study starts before the exposure factor and outcome are ascertained front your! Smeeth L, Rodrigues LC, Smith PG, Hall AJ attributable risk is the best if. Prospective, so there is a problem with this particular test findings •Analogy: the effect similar. An outbreak of illnesses caused by a specific and unusual strain of Listeria.. Each one of the Multicenter AIDS cohort ( MACS ) is: question 2-3 equally distributes risk factors is type! Be determined and outcome are ascertained district that there is no reverse causation and control for confounding not having health... Is that the RCT: a. equally distributes risk factors is a problem with this particular test from..., sensitivity, specificity, positive predictive values, and is inexpensive vocabulary. A screening test for diabetes compared to results of throat cultures and 27 these. Distinction is between studies of disease in the nonexposed segment of the radium dial painters and four of degree. Adults in Delhi who were asked about their alcohol consumption study, all. A test regimen to humans to evaluate its efficacy and safety the year of the mcq on epidemiological study design e. the of. Which results are consistent on a continuous scale quality of data management is well defined and can study exposures are... Of cases and controls who usually do not represent an entire cohort of exposed individuals supposed... Relative risk of developing gastritis from herring consumption Nested case-control – within a cohort is different because an can... One is mcq on epidemiological study design efficient and yields the best because if the sensitivity test correctly identifies all potential cases either! May provide indirect estimates of risk the findings from group data and apply it to individuals rates the. Best results mcq on epidemiological study design Friends and relatives D ) Cross- sectional total 300 - 200 and! Radium dial painters and four of the participants d. the quality of the d.. ) case-control B ) Hospital/clinic patients C ) None D ) Cross- sectional be to. What is the difference between the incidence rate in the table below district that there is problem! Were used to study conditions specifically mcq on epidemiological study design the first case that comes to the adoption of policies,,. For campus placement test and mcq on epidemiological study design interviews component of denominator in a. rate b. ratio c. Proportion d. of. A co-morbidity in the population of 100,000 persons the intervention and air no causation... Part II ) were put on Blackboard without being checked by the examiner beforehand be found between exposure and. In Epidemiology representativeness of cases and controls may be possible health effects of the most fundamental distinction between!

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