Question 4 The difference between internal and external validity is best described as:
Internal validity tells us if the inferences drawn from the study population are true of the study population whereas external validity tells us if the inferences drawn from the study population are true of the target population.
Internal validity tells us if the inferences drawn from the population being studied apply to other populations whereas external validity tells us if the inferences drawn from the population being studied apply to the target population.
Internal validity tells us if the inferences drawn from population being studied apply to the target population whereas external validity tells us if the inferences from population being studied apply to other populations.
Internal validity tells us if the inferences drawn from the population being studied apply to the source population whereas external validity tells us if the inferences drawn from the population being studied apply to the target population.
Ans-c
External validy is extent tto which results from a study population is applied to another population/event
Inrernal validity is interference drawn from one population being studed and applied to target population
Question 4 The difference between internal and external validity is best described as: Internal validity tells...
QUESTION 44 Which of the following is a difference between internal recruiting and external recruiting? a. Internal recruiting involves hiring people who already work in the company, whereas external recruiting involves hiring people from outside the company. b. Unlike external recruiting, internal recruiting involves hiring passive candidates Internal recruitment methods include employee referrals and walk-ins, whereas external recruitment methods include job posting and career paths. d. Unlike external recruiting, internal recruiting increases recruitment start-up time and costs. QUESTION 45 Which...
Question 5 Which of the following procedures is specifically meant to increase the external validity of the findings of a well-designed randomized clinical tria? Selected Answers B Using a representative sample selected randomly from the population Answers A Allow participants to select which treatment arm they prefer B. Using a representative sample selected randomly from the population Using a long run-in design C. D. Assigning participants to the different study arms or treatment leveis randomly Question 6 Which of the...
12. The fund internal auditors represent the interests of the organization and external auditors represent outsiders amental difference between internal and external auditing is that: b. internal auditors perform IT audits and external auditors perform financial statement audits c internal auditors focus on financial statement audits and external auditors focus on operational audits and financial statement audits d. external a. auditors assist internal auditors but internal auditors cannot assist external auditors 13. Which of the following is not an objective...
length. The difference between the mean costs of automobile insurance for a similar vehicle and driver with two different companies is being studied. The following means resulted from 100 randomly chosen policies from each of the two companies. The mean of the sample from Company One was 560 and the mean of the sample from Company Two was 575. Assume the standard deviation of the population of insurance costs with Company One is 30 and the standard deviation of the...
QUESTION 4 A study seeks to determine if the mean difference between weekly grocery expenses this year and five years 2go is not zero. A sample of 60 adults participated in a five-year follow up study. Their weekly grocery expenses were recorded five years ago and this year. Below is the SPSS output corresponding to this study Paired Samples Statistics Sid Error Waan Pair: This Yr Five Yrsago Mean 153.2076 140.9193 N Std Deviation 60 406025 60 5 .20713 5...
answer the following questions Stage 1 : categorized the evidence by the Quality of its source. 1 . Trails ( planned interventions with contemporaneous assignment of treatment and nontreatment ( a) Randomized , double -blinded, placebo -controlled with sufficient power appropriately analyzed (b) Randomized but blindness not achieved. (c) Nonrandomized trails with good control of confounding , that are well conducted in other respects (d)Randomized but with deficiencies in execution or analysis ( insufficient power , major losses to follow-up...
Choose the study design that best matches each statement described below. The study design may be used more than once or none at all. (24 points) Statement Study Design ____ Blinding or masking is used to control potential bias. Case-Control ____ Observational epidemiological studies, this design is cheaper and faster to conduct because of the usage of already existing data. Cross-sectional ____ Control groups can receive the current “standard” treatment or a placebo. Ecological ____ Data on exposure and outcome...
Page 4 UI Question 4 (3 points) The difference between an HMO and a PPO is that ... O Patients who are members of a PPO have less opportunity to choose their own carefivers than do members of a PPO O HMOs are affected by managed care, PPOs are not HMOs are usually managed by physicians and PPOs are usually managed by health care administrators Physicians and other caregivers word directly for an HMO, whereas they maintain their own offices...
Question 1 > As part of a statistics project, a teacher brings a bag of marbles containing 600 white marbles and 200 red marbles. She tells the students the bag contains 800 total marbles, and asks her students to determine how many red marbles are in the bag without counting them. A student randomly draws 150 marbles from the bag. Of the 150 marbles, 37 are red. The data collection method can best be described as O Survey O Controlled...
QUESTION 4 A study seeks to determine if the mean difference between weekly grocery expenses this year and five years o grocery expenses were recorded five years ago and this year Below is the SPSS output corresponding to the Paired Samples Statistics to. A sample of adults participated in a five-year follow up ad Their weekly 153 9091 149 412 55 55 St Denton 456343 541155 Paired Sample Par preces 15 Comidence of Wan Sid Deviation SIE an The following...