Homework Answers
Question 5:
b, Using a representative sample selected randomly from the
population
To find the relationship between external and internal validity
using a randomized control trial, RCT used a controlled condition
that compromises their external validity.
This goal for achieving trial design includes a more representative
patient sample and using supplemental RCT evidence studies.
Placebo-controlled clinical trials make chances for patients'
treatment options to participate.
Before randomization long run period design varies often if use RCT
will affect the external and internal validity. In RCT predefined
samples it targets population with different groups.
Question 6:
a, Experimental studies
Experimental studies always based on ethical considerations that
involve human subjects for diagnostic tests, procedures, etc. It
ethics to be applied in all types of experiments.
A randomized controlled trial does not always need ethical
consideration, it includes case-control studies and cohort
studies.
Add Answer to:
Question 5 Which of the following procedures is specifically meant to increase the external validity of...
tiONS and bata Researchers are studying the relationship between honesty, age, and self-control conducted an experiment on 160 ages of 5 and 15. The researchers asked each child to toss a fair...
tiONS and bata Researchers are studying the relationship between honesty, age, and self-control conducted an experiment on 160 ages of 5 and 15. The researchers asked each child to toss a fair coin in private and to record the outcome (heads or tails) on a paper sheet, and said they would only reward children who report heads. Half the students were explicitly told not to cheat and the others were not given any explicit instruction s. Differences were observed in...
tiONS and bata Researchers are studying the relationship between honesty, age, and self-control conducted an experiment...
tiONS and bata Researchers are studying the relationship between honesty, age, and self-control conducted an experiment on 160 ages of 5 and 15. The researchers asked each child to toss a fair coin in private and to record the outcome (heads or tails) on a paper sheet, and said they would only reward children who report heads. Half the students were explicitly told not to cheat and the others were not given any explicit instruction s. Differences were observed in...
Which of the following actions taken by the researcher would MOST likely improve the external validity...
Which of the following actions taken by the researcher would MOST likely improve the external validity in a study? Answers A-D A Enrolling a diverse subject sample. B Randomly assigning subjects to groups. C Conducting a power analysis. D Using restrictive inclusion/exclusion criteria. Which of the following is an accurate statement about the reliability of an instrument in a research study? Answers A-D A A tool can be reliable even if it is not valid. B A tool can be...
A research study is conducted where 15 participants complete a 12-week control period followed by a...
A research study is conducted where 15 participants complete a 12-week control period followed by a 12-week exercise intervention. What type of research is this? True experimental Correlational Pre-experimental Quasi-experimental Question 2 (1 point) ✓ Saved What type of research collects fairly unstructured data via interviews and focus groups? Quantitative Qualitative Which type of research is attempting to establish the presence/absence of "cause- effect"? Correlational Descriptive Experimental Historical Question 4 (1 point) ✓ Saved When considering the 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...
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...
In a _________ evaluation design, the evaluator collects data from multiple data sources or studies and...
In a _________ evaluation design, the evaluator collects data from multiple data sources or studies and combines those results to create a new evaluation report. Case study or scenario Meta analysis Cohort study Factorial Flag this Question Question 2 _________ is collected to show a participant s condition before a program starts. Interim data Qualitative data Knowledge Baseline data Flag this Question Question 3 In a _________ evaluation, only the evaluator, not the participants, are aware of their placement in...
39. studies are usually executed when the knowledge level is relatively high in regards to the...
39. studies are usually executed when the knowledge level is relatively high in regards to the relationship of the exposure and disease being studied. a. Case-control b. Cohort 40. In using the study design, the epidemiologist divides study participants on whether or not they have a certain exposure and then waits to see if a certain disease/injury eventually occurs. a. case-control b. cohort 41. In a randomized clinical trial "this" has got to be a part of the study protocol....
CASE STUDY Cats or dogs—which is the better pet for relieving stress? To answer this age-old...
CASE STUDY Cats or dogs—which is the better pet for relieving stress? To answer this age-old question, your DSC decided to test whether they should start a “Furry Friends” program for emotional support during exams using dogs or cats. To test the difference, they selected 40 random people who didn’t have a pet at home. Each person was randomly assigned to either a cat treatment or a dog treatment and asked to drop by the test room for 30 min...
Question 2 Which of the following is a characteristic of case-control studies? Selected Answers: c. Most...
Question 2 Which of the following is a characteristic of case-control studies? Selected Answers: c. Most appropriate for hypotheses testing Most appropriate design for examining Causal factors when the study design is ethical Answers: Appropriate in the case of rare outcomes Most appropriate for hypotheses testing Requires a sample size of 1,000 participants or more Question 3 int factors for oral cancer, the relative risk for the association of chewing gurri es vs.no) with oral cancer is 1.8 with a...
answer the following questions Stage 1 : categorized the evidence by the Quality of its source....
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...
tiONS and bata Researchers are studying the relationship between honesty, age, and self-control conducted an experiment on 160 ages of 5 and 15. The researchers asked each child to toss a fair coin in private and to record the outcome (heads or tails) on a paper sheet, and said they would only reward children who report heads. Half the students were explicitly told not to cheat and the others were not given any explicit instruction s. Differences were observed in...
tiONS and bata Researchers are studying the relationship between honesty, age, and self-control conducted an experiment on 160 ages of 5 and 15. The researchers asked each child to toss a fair coin in private and to record the outcome (heads or tails) on a paper sheet, and said they would only reward children who report heads. Half the students were explicitly told not to cheat and the others were not given any explicit instruction s. Differences were observed in...
Which of the following actions taken by the researcher would MOST likely improve the external validity in a study? Answers A-D A Enrolling a diverse subject sample. B Randomly assigning subjects to groups. C Conducting a power analysis. D Using restrictive inclusion/exclusion criteria. Which of the following is an accurate statement about the reliability of an instrument in a research study? Answers A-D A A tool can be reliable even if it is not valid. B A tool can be...
A research study is conducted where 15 participants complete a 12-week control period followed by a 12-week exercise intervention. What type of research is this? True experimental Correlational Pre-experimental Quasi-experimental Question 2 (1 point) ✓ Saved What type of research collects fairly unstructured data via interviews and focus groups? Quantitative Qualitative Which type of research is attempting to establish the presence/absence of "cause- effect"? Correlational Descriptive Experimental Historical Question 4 (1 point) ✓ Saved When considering the threats to internal...
39. studies are usually executed when the knowledge level is relatively high in regards to the relationship of the exposure and disease being studied. a. Case-control b. Cohort 40. In using the study design, the epidemiologist divides study participants on whether or not they have a certain exposure and then waits to see if a certain disease/injury eventually occurs. a. case-control b. cohort 41. In a randomized clinical trial "this" has got to be a part of the study protocol....
Question 2 Which of the following is a characteristic of case-control studies? Selected Answers: c. Most appropriate for hypotheses testing Most appropriate design for examining Causal factors when the study design is ethical Answers: Appropriate in the case of rare outcomes Most appropriate for hypotheses testing Requires a sample size of 1,000 participants or more Question 3 int factors for oral cancer, the relative risk for the association of chewing gurri es vs.no) with oral cancer is 1.8 with a...
Most questions answered within 3 hours.
-
In the Metric System, the basic unit of measurement for length
is ___
In the Metric...
asked 2 minutes ago -
A spatially uniform electric field varies in time according
to E = Eo + 3000 t,...
asked 2 minutes ago -
A sample of C3H8 has 1.60×1024 H atoms.
How many carbon atoms does the sample contain?...
asked 8 minutes ago -
Discuss the sales orders process module(s) in the Enterprise
Resource Planning system. How does it contribute...
asked 11 minutes ago -
The position in an object as a function of time is given as ?
(?) =...
asked 11 minutes ago -
Design a class for python named PersonData with the following
member variables:
lastName
firstName
address
city...
asked 25 minutes ago -
How does use of the risk/need/responsivity model impact
effective rehabilitation services?
asked 29 minutes ago -
Your rich uncle has just given you a high school graduation
present of $900,000. The present,...
asked 31 minutes ago -
1=Write a program in C to get 16-bit data from Port-D and send
it to ports...
asked 30 minutes ago -
Calculate Ecell for the following reaction and conditions: 0.50
M Br2 (aq), 0.10 M Pb+2 (aq),...
asked 51 minutes ago -
There can be more than one correct answer.
Hypophysiotropic hormones:
A. released by the hypothalamus
B....
asked 56 minutes ago -
Scott Ruskin is the CEO of Decatur Materials. The company has
been struggling for the last...
asked 54 minutes ago