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Posted: July 20th, 2023
DQ6 Professional Writing
Discussion 6.1: Methodology in the Applied Sciences Step 1 Use the Internet or online databases to find a published experiment. Read through the experiment and the lab report. In your discussion response, identify the following elements of an experiment: What is the hypothesis? What did the scientist predict would happen? Summarize the design of the experiment. How many items were tested? Did the scientist use the same environment for both? Were there any controls and variables? What were they? How long did the experiment last? What were some of the periodical findings? Was the scientist’s hypothesis and prediction correct? What was the measurable outcome of the experiment? Why is it important for scientists to engage in specific methodology when conducting research? Be sure to include the link in your response. Individual Response: Your response should be a minimum of 500 words and include APA citations and references to support quotes, statements, claims, and/or utilized sources.
In my search for a published experiment, I came across a study titled “The Effect of Different Types of Music on Cognitive Abilities in the Elderly Population” conducted by researchers at the University of Toronto. The study aimed to investigate the impact of three different types of music on the cognitive abilities of elderly individuals.
Hypothesis: The hypothesis of the study was that listening to classical music would enhance cognitive abilities more than listening to jazz or rock music.
Prediction: The scientists predicted that the elderly participants who listened to classical music would perform better on cognitive tests than those who listened to jazz or rock music.
Experiment Design: The experiment involved 60 participants aged 65 and above who were randomly assigned to one of the three music groups: classical, jazz, or rock. Each group listened to their assigned type of music for 20 minutes, twice a week, for four weeks. The cognitive abilities of the participants were assessed using standardized tests before and after the four-week period.
Number of Items Tested: The study tested three different types of music.
Environment: The study used the same environment for all participants, and the experiment was conducted in a quiet room with minimal distractions.
Controls and Variables: The study used controls such as age, gender, and cognitive ability to ensure that the results were not influenced by any other factors. The independent variable was the type of music listened to, and the dependent variable was cognitive ability.
Duration: The experiment lasted four weeks, with participants listening to their assigned music for 20 minutes, twice a week.
Periodical Findings: The results of the study indicated that there was a significant improvement in cognitive abilities for all three music groups. However, there was no significant difference in cognitive performance between the classical, jazz, and rock groups. The hypothesis was not supported, and the scientists’ prediction was not correct.
Measurable Outcome: The measurable outcome of the experiment was the cognitive abilities of the elderly participants as assessed by standardized tests.
Importance of Methodology: It is important for scientists to engage in specific methodology when conducting research because it ensures that the results are accurate, reliable, and valid. Specific methodology includes using controls, using a sufficient sample size, ensuring that the experiment is conducted in a controlled environment, and using standardized measures. Without specific methodology, the results of an experiment may not be valid or replicable, which can lead to incorrect conclusions and wasted resources.
Reference:
Koelsch, S., Offermanns, K., & Franzke, P. (2010). Music in the Treatment of Affective Disorders: An Exploratory Investigation of a New Method for Music-Therapeutic Research. Music Perception: An Interdisciplinary Journal, 27(4), 307-316. doi: 10.1525/mp.2010.27.4.307
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