Homework Answers
A. The experimental design used in the experiment is Matched - Pair Design.
B. Matched - Pair Design is used in the experiment because the therapy should be assigned to a homogenous groups of subjects. The goal is to maximize homogenity in each pair. In other words you want the pairs to be similar as possible.
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Read about each of the experiments below. For each experiment, identify (A) which experimental design was...
Quiz: Bidwell Quiz - Chapter 1 - Data Collection Time Remain 00:33:58 Submit Quiz This Question:...
Quiz: Bidwell Quiz - Chapter 1 - Data Collection Time Remain 00:33:58 Submit Quiz This Question: 1 pt 6 of 10 (4 complete) This Quiz: 10 pts possible of a new drug therapy for treating patlients with dementia. To do this, they identified 75 patients with a diagnosis of dementia. Patients were randomly assigned to one of three treatment groups. Twenty-five patients were randomly assigned to receive the new drug therapy, another 25 received the older drug therapy, and the...
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...
1. The pretest-posttest nonequivalent control group design is also very commonly used in psychology. Which of...
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...
A researcher is interested in comparing the effects of two therapies often used to treat the...
A researcher is interested in comparing the effects of two therapies often used to treat the symptoms of Post-Traumatic Stress Disorder. Volunteers with PTSD are randomly divided into three groups. One group is a control group, and their "therapy" consists of simply talking to an experimental confederate about everyday subjects. Another group participates in a type treatment that might generally be considered Humanistic Another group participates in a type of treatment that might generally be considered Cognitive-Behavioral. Each participant is...
What’s Wrong with This Experiment? Identify the most critical flaw in the experiments described below and...
What’s Wrong with This Experiment? Identify the most critical flaw in the experiments described below and explain how it could be fixed. 1). 100 smokers who wanted to quit smoking were randomly assigned to two groups. One group was given nicotine gum to chew whenever they felt the urge to smoke. The other group was given nothing. After four weeks the groups were compared on the percentage of people who had been successful at not smoking. 2). An educational researcher...
1) Read the title for each study and then identify if the study is: • experimental...
1) Read the title for each study and then identify if the study is: • experimental quasi-experimental, or descriptive. 1. Cardiometabolic Risk Factors Among 1.3 Million Adults with overweight or Obesity, but Not Diabetes, in 10 Geographically Diverse Regions of the United States, 2012 - 2013. 2. Identification of Patients with Diabetes Who Benefit Most From a Health Coaching Program in Chronic Disease Management. (Participants were randomly assigned to groups.) 3. Prevalence of Mindfulness Practices in the U.S. Workforce: National...
Can you please check my work. Thank you Classify the experiments according to their experimental designs....
Can you please check my work.
Thank you
Classify the experiments according to their experimental designs. Some designs may be used more than once. Vitamins. A sample of 50 children was separated into boys and girls. The members of each group were randomly assigned to two different vitamin supplements. The responses of each child were recorded at the completion of the experiment. Flu. A sample of 50 flu patients was grouped into pairs of similar individuals based on age and...
Select the studies below that use a matched pairs experimental design. To determine the effect of...
Select the studies below that use a matched pairs experimental design. To determine the effect of wearing a helmet in a motorcycle accident, recent accident reports are collected. The reports are divided into two groups, those who were wearing a helmet at the time of the accident and those were were not. The difference of the mean severity for the two groups is computed. Participants in a study to determine the effects of a new weight-loss medication are divided into...
Select the studies below that use a matched pairs experimental design. (a).To determine the effect of...
Select the studies below that use a matched pairs experimental design. (a).To determine the effect of wearing a helmet in a motorcycle accident, recent accident reports are collected. The reports are divided into two groups, those who were wearing a helmet at the time of the accident and those were were not. The difference of the mean severity for the two groups is computed. (b).A study is designed to test which of two new methods is better at teaching children...
Researchers studying how adults respond to the addition of additives to their pain medication design a...
Researchers studying how adults respond to the addition of additives to their pain medication design a study where volunteers take home either a bottle of standard aspirin, or a bottle of "buffered" aspirin (aspirin mixed with an antacid); the medicine type is randomly assigned, and the volunteers do not know which medication type they have. Every time they have a headache, the volunteers take one of their assigned pills, and record - the severity of the headache (low/medium/high: categorical) -...
Quiz: Bidwell Quiz - Chapter 1 - Data Collection Time Remain 00:33:58 Submit Quiz This Question: 1 pt 6 of 10 (4 complete) This Quiz: 10 pts possible of a new drug therapy for treating patlients with dementia. To do this, they identified 75 patients with a diagnosis of dementia. Patients were randomly assigned to one of three treatment groups. Twenty-five patients were randomly assigned to receive the new drug therapy, another 25 received the older drug therapy, and the...
A researcher is interested in comparing the effects of two therapies often used to treat the symptoms of Post-Traumatic Stress Disorder. Volunteers with PTSD are randomly divided into three groups. One group is a control group, and their "therapy" consists of simply talking to an experimental confederate about everyday subjects. Another group participates in a type treatment that might generally be considered Humanistic Another group participates in a type of treatment that might generally be considered Cognitive-Behavioral. Each participant is...
1) Read the title for each study and then identify if the study is: • experimental quasi-experimental, or descriptive. 1. Cardiometabolic Risk Factors Among 1.3 Million Adults with overweight or Obesity, but Not Diabetes, in 10 Geographically Diverse Regions of the United States, 2012 - 2013. 2. Identification of Patients with Diabetes Who Benefit Most From a Health Coaching Program in Chronic Disease Management. (Participants were randomly assigned to groups.) 3. Prevalence of Mindfulness Practices in the U.S. Workforce: National...
Can you please check my work.
Thank you
Classify the experiments according to their experimental designs. Some designs may be used more than once. Vitamins. A sample of 50 children was separated into boys and girls. The members of each group were randomly assigned to two different vitamin supplements. The responses of each child were recorded at the completion of the experiment. Flu. A sample of 50 flu patients was grouped into pairs of similar individuals based on age and...
Researchers studying how adults respond to the addition of additives to their pain medication design a study where volunteers take home either a bottle of standard aspirin, or a bottle of "buffered" aspirin (aspirin mixed with an antacid); the medicine type is randomly assigned, and the volunteers do not know which medication type they have. Every time they have a headache, the volunteers take one of their assigned pills, and record - the severity of the headache (low/medium/high: categorical) -...
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