Question

A researcher is interested in the effects of a new mnemonic strategy on short-term memory in...

A researcher is interested in the effects of a new mnemonic strategy on short-term memory in 70 year-olds. She wants to include both those who are diagnosed as being in the mild stage of Alzheimer’s disease (AD) as well as 70 year-olds who have no diagnosable level of memory impairment. So, she will have 4 groups of 70 year-olds. One with no cognitive impairment that receives no intervention, one with no cognitive impairment that receives the training with the new mnemonic strategy, one group with individuals diagnosed with mild AD who receive no intervention, and the last group has individuals with mild AD who receive the training for the new mnemonic strategy.

Through a pretest of the participants’ short-term memory abilities, the researcher will insure that the basic abilities of the participants are equivalent within the non-AD groups and within the AD groups prior to the training. For 2 weeks, the mnemonic strategy participants will be asked to come to the university every other day for a 30-minute (computer based) training session (each session). Those not in the training groups will be asked to come in an do whatever they want on a computer for 30 minutes. Following the 2-week training period, all participants will be assessed using the Wechsler short-term memory scale, an established assessment of short-term memory abilities.

The project was reviewed and approved by the university’s Institutional Review Board. Although it is considered that no physical or psychological harm would come from the training strategy, all participants were required to receive clearance from their physicians in order to participate.

All participants will have their rights discussed with them and will only participate if they have signed the informed consent. For those who are unable to legally provide consent to participate, consent will be obtained from the legal guardian in addition to the informed assent of the participant.

All participants will be informed of the outcome of the study, and if the mnemonic training is shown to be beneficial, the training will be offered to all participants.

Identify and discuss the variables used in this study (e.g., independent, dependent, control).

Identify the type of design. What are the strengths of this type of design? What are the weaknesses? Why?

Homework Answers

Answer #1

The independent variable is the 30 minutes training on the computer and the dependent variable is the improvement in short term memory.

There are two control groups and two experimental groups. One control group has no cognitive impairment and the other control group has mild Alzheimer’s disease. Similarly, one experimental group has no cognitive impairment and the other with mild Alzheimer’s disease.

The strength of this type of experimental research is that we can compare the results and identify whether the intervention is effective or not. It will say whether there is any relationship between the independent and dependent variable, in this case it’s the effect of 30 minutes memory improvement training on computers improve the short term memory of older people. It has followed all the research processes carefully because experimental research has the responsibility and accountability of not harming anyone.

In experimental studies, sometimes the subjects will not stay till the experiment ends. The outcome of the extraneous variable may be irrelevant or unexpected if human subjects are involved as they might influence the outcome. The research ethics might prevent the researchers in using human subject.

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
A researcher is interested in the effects of a new mnemonic strategy on short-term memory in...
A researcher is interested in the effects of a new mnemonic strategy on short-term memory in 70 year-olds. She wants to include both those who are diagnosed as being in the mild stage of Alzheimer’s disease (AD) as well as 70 year-olds who have no diagnosable level of memory impairment. So, she will have 4 groups of 70 year-olds. One with no cognitive impairment that receives no intervention, one with no cognitive impairment that receives the training with the new...
read Seasons of Love chapter:measuring a child's life after suicide. please answer the questions : reflect...
read Seasons of Love chapter:measuring a child's life after suicide. please answer the questions : reflect on what happens to the families when there is a suicide in the family, based on the Seasons of Love chapter...how should people be told? What details are best left unshared? below is the story These theories may have a certain face-validity, but they often neglect environmental or contextual factors that are innate to answering the question of “why” a person might engage in...
What is Medicare Part C? Provides the aged with home health care Provides the aged with...
What is Medicare Part C? Provides the aged with home health care Provides the aged with prescription drugs Enables low-income aged to participate in Medicaid Provides a voluntary managed care option for the aged How is Medicaid financed? It is financed entirely by the federal government. It is financed entirely by the state. States receive the same percentage of federal support. States with lower per capita incomes receive a greater percentage of federal support If a healthcare system is "free"...
Assignment: What are the main arguments in the article? Please answer within 5 hours. It is...
Assignment: What are the main arguments in the article? Please answer within 5 hours. It is extremely urgent!!!!!!!!!!!!!!!!!!!!!!!! --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- BIOETHICS. Bioethics as a field is relatively new, emerging only in the late 1960s, though many of the questions it addresses are as old as medicine itself. When Hippocrates wrote his now famous dictum Primum non nocere (First, do no harm), he was grappling with one of the core issues still facing human medicine, namely, the role and duty of the...
What topics are covered in the following article? Please answer within 5 hours. It is extremely...
What topics are covered in the following article? Please answer within 5 hours. It is extremely urgent!!!!!!!!!!!!!!!!!!!!!!!! --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- BIOETHICS. Bioethics as a field is relatively new, emerging only in the late 1960s, though many of the questions it addresses are as old as medicine itself. When Hippocrates wrote his now famous dictum Primum non nocere (First, do no harm), he was grappling with one of the core issues still facing human medicine, namely, the role and duty of the physician....
Please answer the following Case analysis questions 1-How is New Balance performing compared to its primary...
Please answer the following Case analysis questions 1-How is New Balance performing compared to its primary rivals? How will the acquisition of Reebok by Adidas impact the structure of the athletic shoe industry? Is this likely to be favorable or unfavorable for New Balance? 2- What issues does New Balance management need to address? 3-What recommendations would you make to New Balance Management? What does New Balance need to do to continue to be successful? Should management continue to invest...
________ client-centered therapy centers on the patient's goals and ways of solving problems. Select one: a....
________ client-centered therapy centers on the patient's goals and ways of solving problems. Select one: a. Rogers' b. Freud's c. Beck d. Ellis Question 2 Not yet answered Points out of 1.00 Flag question Question text A frequently prescribed drug therapy for managing one's depression is ____________. Select one: a. Adderall b. Lithium c. Prozac d. Thorazine Question 3 Not yet answered Points out of 1.00 Flag question Question text A major goal of modern inpatient psychiatric treatment is: Select...
What tools could AA leaders have used to increase their awareness of internal and external issues?...
What tools could AA leaders have used to increase their awareness of internal and external issues? ???ALASKA AIRLINES: NAVIGATING CHANGE In the autumn of 2007, Alaska Airlines executives adjourned at the end of a long and stressful day in the midst of a multi-day strategic planning session. Most headed outside to relax, unwind and enjoy a bonfire on the shore of Semiahmoo Spit, outside the meeting venue in Blaine, a seaport town in northwest Washington state. Meanwhile, several members of...
Reflect back on your draft. Reread it. Analyze it. What are the strengths of your draft?...
Reflect back on your draft. Reread it. Analyze it. What are the strengths of your draft? What areas will need improvement? The Treatment of Special Needs Children Abstract            Special needs children are still on the receiving end of abuse despite the increased clamor against their mistreatment. Also, they are likely to face discrimination and abuse in their homes and their social spheres; they have limited opportunities for quality education and can find trouble getting adequate medical assistance. The management of...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT
Active Questions
  • Instruments in airplane A indicate that, with respect to the air, the plane is headed 30°...
    asked 6 minutes ago
  • You wish to test the following claim (H1H1) at a significance level of α=0.05α=0.05.       Ho:μ=73.9Ho:μ=73.9       H1:μ≠73.9H1:μ≠73.9...
    asked 6 minutes ago
  • Let X1 and X2 be independent Poisson random variables with respective parameters λ1 and λ2. Find...
    asked 11 minutes ago
  • You wish to test the following claim (H1H1) at a significance level of α=0.001α=0.001.       Ho:μ=88.8Ho:μ=88.8       H1:μ>88.8H1:μ>88.8...
    asked 17 minutes ago
  • You have been asked to install floor tiles and paint your aunt’s bathroom based on the...
    asked 20 minutes ago
  • A new disinfection system is being designed for a treatment plant with a flow of 400...
    asked 20 minutes ago
  • A produce distributor uses 786 packing crates a month, which it purchases at a cost of...
    asked 28 minutes ago
  • What do researchers believe explains why some individual to engage in precocious, promiscuous, unprotected sex or...
    asked 28 minutes ago
  • 4. For a 99% confidence level, how large of a sample size is needed for a...
    asked 28 minutes ago
  • Another student was upset for a different reason. He thought that Test 2 was too long...
    asked 30 minutes ago
  • Suppose a marketing company wants to determine the current proportion of customers who click on ads...
    asked 34 minutes ago
  • 1. a) Get the arc length of the curve. r(t)= (cos(t) + tsin(t), sin(t) - tcos(t),...
    asked 41 minutes ago