Failure of the student participants to follow the study protocol exactly as required makes the compared...
Failure of the student participants to follow the study protocol exactly as required makes the compared groups more similar, which reduces the ability of the investigator to detect a difference between the groups,
a) True
b) False
Homework Answers
True
study protocol refers to document that talks of design, objectives and methodology of study. It needs to be followed by participants. In experimental studies, participants in study group have to follow the protocol whereas comparison or control group doesnt have to be. As a result, researcher will be able to know the effectiveness of study
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Failure of the student participants to follow the study
protocol exactly as required makes the compared...
A loss of study participants to follow-up that are different than those not lost to follow-up...
A loss of study participants to follow-up that are different than those not lost to follow-up is an example of information bias. Group of answer choices True False Cohort studies are attractive when the period between exposure and disease are short. Group of answer choices True False Because cohort studies are conducted over long periods of time and can directly measure incidence, cohort studies do not require large study populations. Group of answer choices True False
10) A graduate student in gerontology was interested in volunteerism in the elderly and if it...
10) A graduate student in gerontology was interested in volunteerism in the elderly and if it leads to increased life satisfaction. He recruited 50 elderly participants who self-reported volunteering at least once a week for a charity or similar organization and 50 elderly participants who self-reported that they do no volunteer work of any kind. The groups were matched in terms of age, health and socio-economic status. He administered a standard Life Satisfaction questionnaire to each of his participants. When...
QUESTION 9 A student new to the study of hearing wanted to determine the ability of...
QUESTION 9 A student new to the study of hearing wanted to determine the ability of listeners to determine the difference in the duration of two tones as a means to study temporal discrimination. He asked listeners to discriminate between a tone of 5 mse duration and one of 20 msec duration, and in another condition between a tone of 200 msec duration and one of 400 msec duration. He found that the listeners could detect the difference between the...
Answer the following parts: Aerobic dancing study: A researcher wants to know which exercise program is more...
Answer the following parts: Aerobic dancing study: A researcher wants to know which exercise program is more effective in reducing body mass index (BMI) in 60 to 70 year-old individuals with diabetes: 1) a 20 minute aerobic dancing program or 2) a 20 minute walking program. The participants in the research project will be 60 volunteers living in a large gated retirement community. Participants will be randomly assigned to either the aerobic dancing group or the walking group. Participants will exercise...
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...
13. The data in Table 6-27 are collected in a randomized trial to test the efficacy of a new drug for migraine headaches. The following are characteristics of study participants overall and then orga...
13. The data in Table 6-27 are collected in a randomized trial to test the efficacy of a new drug for migraine headaches. The following are characteristics of study participants overall and then organized by the treatment to which they are assigned TABLE 6-27Characteristics in Participants in Study of Treatment for Migraine Headaches All (n- 200) Placebo (n 100) New Drug (n 100) 32.0 (4.9) 31.9 (5.1) 32.8 (4.7 Mean (SD) age, years 51% 48% 54% % Male 78% 80%...
Researchers interested in the perception of three-dimensional shapes on computer screens decide to investigate what comp...
Researchers interested in the perception of three-dimensional shapes on computer screens decide to investigate what components of a square figure or cube are necessary for viewers to perceive details of the shape. They vary the stimuli to include fully rendered cubes, cubes drawn with corners but incomplete sides, and cubes with missing corner information. The viewers are trained on how to detect subtle deformations in the shapes, and then their accuracy rate is measured across the three figure conditions. Accuracy...
Researchers interested in the perception of three-dimensional shapes on computer screens decide to investigate what components...
Researchers interested in the perception of three-dimensional shapes on computer screens decide to investigate what components of a square figure or cube are necessary for viewers to perceive details of the shape. They vary the stimuli to include fully rendered cubes, cubes drawn with corners but incomplete sides, and cubes with missing corner information. The viewers are trained on how to detect subtle deformations in the shapes, and then their accuracy rate is measured across the three figure conditions. Accuracy...
answer all please In an analysis of variance, the MS between and MS within represent the...
answer all please
In an analysis of variance, the MS between and MS within represent the means of the squared variability between and within conditions. True • False QUESTION 14 If an analysis of variance produces SS between 30 and MS between 10, then the ANOVA is comparing three treatment conditions. True False QUESTION 15 Compared to an independent measures design a repeated measures study is more likely to find a statistically significant effect because it reduces the contribution of...
Case: Charles was put in charge of a research study which required 40 participants who were...
Case: Charles was put in charge of a research study which required 40 participants who were between the ages of 55-75, had a diagnosis of diabetes, and a recent (less than 4 weeks) diagnosis of diabetic neuropathy. The treatment required a short duration from diagnosis because it required certain anatomical structures still be intact. Currently, 39 participants had agreed to the trial and met all the criteria. Two of the participants were diagnosed with diabetic neuropathy 3 weeks and 6...
QUESTION 9 A student new to the study of hearing wanted to determine the ability of listeners to determine the difference in the duration of two tones as a means to study temporal discrimination. He asked listeners to discriminate between a tone of 5 mse duration and one of 20 msec duration, and in another condition between a tone of 200 msec duration and one of 400 msec duration. He found that the listeners could detect the difference between the...
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...
13. The data in Table 6-27 are collected in a randomized trial to test the efficacy of a new drug for migraine headaches. The following are characteristics of study participants overall and then organized by the treatment to which they are assigned TABLE 6-27Characteristics in Participants in Study of Treatment for Migraine Headaches All (n- 200) Placebo (n 100) New Drug (n 100) 32.0 (4.9) 31.9 (5.1) 32.8 (4.7 Mean (SD) age, years 51% 48% 54% % Male 78% 80%...
answer all please
In an analysis of variance, the MS between and MS within represent the means of the squared variability between and within conditions. True • False QUESTION 14 If an analysis of variance produces SS between 30 and MS between 10, then the ANOVA is comparing three treatment conditions. True False QUESTION 15 Compared to an independent measures design a repeated measures study is more likely to find a statistically significant effect because it reduces the contribution of...
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