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PSY 201 Discussion Classification Of Research Design

PSY 201 Discussion Classification Of Research Design

Consider the following scenario: You are designing a research study to determine the effects of a new medication to treat bipolar disorder in children. Would you choose to conduct a correlational study or an experimental study? In addition, would you choose a cross-sectional or a longitudinal design? In explaining your choices, be sure to discuss (a) the pros and cons of the research designs you selected and (b) how they would affect the conclusions you are able to draw from your specific study. Finally, discuss what steps you would take to ensure compliance with APA ethical standards for conducting research with children.

DQ2 Nature-Nurture Debate

The nature-nurture debate is a long standing issue in Developmental psychology.

Explain what is meant by the “nature-nurture” debate.

Choose one aspect of your own development (physical, social, cognitive, personality) and explain how it was influenced by nature, nurture, or both.

Locate and read a scholarly research study article that examines how nature, nurture, or both contribute to some aspect of child development. Summarize the research findings and discuss what you found most interesting about the results. Include the APA article reference.

There are many ways to classify research designs. Nonetheless, the list below offers a number of useful distinctions between possible research designs. A research design is an arrangement of conditions or collection.[5]

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PSY 201 Discussion Classification Of Research Design

PSY 201 Discussion Classification Of Research Design

Descriptive (e.g., case-study, naturalistic observation, survey)
Correlational (e.g., case-control study, observational study)
Experimental (e.g., field experiment, controlled experiment, quasi-experiment)
Review (literature review, systematic review)
Meta-analytic (meta-analysis)
Sometimes a distinction is made between “fixed” and “flexible” designs. In some cases, these types coincide with quantitative and qualitative research designs respectively,[6] though this need not be the case. In fixed designs, the design of the study is fixed before the main stage of data collection takes place. Fixed designs are normally theory-driven; otherwise, it is impossible to know in advance which variables need to be controlled and measured. Often, these variables are measured quantitatively. Flexible designs allow for more freedom during the data collection process. One reason for using a flexible research design can be that the variable of interest is not quantitatively measurable, such as culture. In other cases, the theory might not be available before one starts the research.

The choice of how to group participants depends on the research hypothesis and on how the participants are sampled. In a typical experimental study, there will be at least one “experimental” condition (e.g., “treatment”) and one “control” condition (“no treatment”), but the appropriate method of grouping may depend on factors such as the duration of measurement phase and participant characteristics:

Cohort study
Cross-sectional study
Cross-sequential study
Longitudinal study

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