Longitudinal Methods and Data Collection
Getting Started
The primary purpose of the longitudinal research design is to study a sample over a long period of time. A long period of time can be anywhere from a year to an individual’s lifetime. Another way of determining if the research design is longitudinal is that the study contains at least three measurement points. The sample can be as small as one individual or as large as the researcher determines it needs to be. Studying a sample over a long period of time provides a deeper examination of the research question and variables being explored. One of the most famous longitudinal studies, which you will read about, has been going on for nearly 80 years!
How do researchers maintain records in longitudinal studies, especially those that last for such a lengthy period of time? Although following APA ethical codes and other aspects of protecting participants is important for any research study, how well do researchers follow these requirements when studies last for longer periods of time? And, how do they ensure participant protection when a researcher hands a longitudinal study to another researcher? These are questions to keep in mind!
Upon successful completion of this discussion, you will be able to:
· Evaluate longitudinal methods and data collection in psychological research.
· Critique ethics in psychological research.
Resources
· Textbook: Scientific Advances in Positive Psychology
· Article: A Longitudinal Experimental Study Comparing the Effectiveness of Happiness-Enhancing Strategies in Anglo Americans and Asian Americans
· Article: Longitudinal Studies
· Video: Modeling Longitudinal Data Using Structural Equation Methods
· Video: Longitudinal Data Analysis
· Website: APA Ethical Principles of Psychologists and Code of Conduct
Background Information
For this discussion, you will read about and examine the longitudinal research design, as well as data collection methods used for longitudinal studies. An important aspect regarding any type of research study that you will also examine relates to how well researchers follow the APA’s ethical codes. You will critique a study for the effectiveness of implementing these ethical codes.
Instructions
1. Review Chapters 4 , 6 , and 9 in your textbook, Scientific Advances in Positive Psychology, on the topic of longitudinal research.
2. Read the following articles:
a. A Longitudinal Experimental Study Comparing the Effectiveness of Happiness-Enhancing Strategies in Anglo Americans and Asian Americans
b. Longitudinal Studies
3. Watch the following videos. If you are not already logged into the IWU OCLS website, you will be prompted to log in when you click this link. (The following videos include transcripts.)
a. Modeling Longitudinal Data Using Structural Equation Methods . Use the Transcript tab and navigate to 1:25 and watch until 9:18.
b. Longitudinal Data Analysis . Using the Transcript tab, navigate to the 1:25 point and watch through the 13:01 point.
c. APA Ethical Principles of Psychologists and Code of Conduct .
4. Navigate to the discussion topic and respond to the following discussion prompts:
a. After reading the article “A Longitudinal Experimental Study Comparing the Effectiveness of Happiness-Enhancing Strategies in Anglo Americans and Asian Americans,” did you think a longitudinal design was the appropriate method to use based on the research question? Why or why not?
b. What data collection methods were used?
c. How well were the APA ethical codes followed? Identify at least two APA codes that you thought were not addressed in the article and provide input on how they ought to have been addressed.
d. What questions do you have about data collection and longitudinal research?
5. Your initial post:
a. Should be between 400 to 500 words.
6. Your postings should also:
a. Be well developed by providing clear answers with evidence of critical thinking.
b. Add greater depth to the discussion by introducing new ideas.
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