PSY 550 Research Methods

PSY 550 Research Methods

PSY 550 Week 1 Discussion 1 

How does the scientific method lead to the discovery of truth? What is truth, and how can you tell if you’ve discovered it?

PSY 550 Week 1 Discussion 2

Explain the differences between deductive and inductive reasoning and how they can both be used to generate a hypothesis.

PSY 550 Week 2 Discussion 1 

In your own words, define reliability and validity. Explain the various types of reliability and validity, as well as why it is critical to conduct a study that is both reliable and valid.

PSY 550 Week 2 Discussion 2

One of the most divisive studies in psychology history is Stanley Milgram’s obedience to authority experiment. Consider this and other examples as you evaluate such experiments from an ethical standpoint.

PSY 550 Week 3 Discussion 1

Discuss where a table and a figure should go in the manuscript and how they should be used.

Using APA style, define the four general writing guidelines. Why is it critical to follow these guidelines when communicating your research? Explain.

PSY 550 Week 3 Discussion 2  

Discuss at what point in the publishing process potential authors should discuss publication credit. Explain.

Describe how a poster’s sections are organized for presentation.

PSY 550 Week 4 Discussion 1

Define naturalistic observation in your own words. Consider some scenarios in which a naturalistic observational study would be the best choice. During an observation period, what are two sources of bias?

PSY 550 Week 4 Discussion 2

Discuss the benefits and drawbacks of (a) naturalistic observations, (b) surveys, and (c) correlational studies as nonexperimental research methods. Which nonexperimental design would you choose if you were asked to use one of these designs in a study next week, and why?

PSY 550 Week 5 Discussion 1 

Lewis Terman’s giftedness study is one of the most well-known longitudinal designs. In 1925, he began following gifted children through adolescence and adulthood, and the study is expected to be completed in 2020. Explain the unique advantages of such a study, and then discuss the issues that this type of design causes.

PSY 550 Week 5 Discussion 2

Explain why a quasi-experimental design is preferable to a between-subjects design in certain circumstances, but also why an explanatory research method is superior to a predictive method.

PSY 550 Week 6 Discussion 1

Contrast the three types of factorial designs.

PSY 550 Week 6 Discussion 2

Lay out the design for two between-subjects experiments: (a) an experiment involving an experimental group and a control group, and (b) a factorial design with three independent variables that have 3, 2, and 2 levels, respectively.

PSY 550 Research Methods

PSY 550 Week 7 Discussion 1 in

Assume your computed value fort is +3.28 for at-test. +2.048 is the critical value oft. Please explain what you mean. Do you believe the null hypothesis is true or false? Assume you have 28 degrees of freedom and are using a nondirectional (two-tailed) test. To illustrate the relationship between the critical and computed values oft for this result, draw a simple diagram.

PSY 550 Week 7 Discussion 2 

Select an article from a newspaper, an online source, or a magazine, and then look for descriptive statistics in the article. Were the statistics in the article properly described? Explain. Examine whether the descriptive statistics used in your source backed up the claims made there. Were the descriptive stats deceptive?

PSY 550 Week 8 Discussion 1

Create a 10- to 12-slide PowerPoint presentation focusing on the research proposal (excluding title and reference slides): Paper for a Project (submitted last week). Consider the following aspects of the Research Proposal:

Discussion of the Findings Figures and Tables (total of two from paper)

Make sure the references on your reference slide correspond to the references in your proposal.

Include speaker notes below each content-related slide that represent what you would say in person if you were giving the presentation. Do not simply restate the information on the slide; instead, expand on it. Please make sure the speaker notes are at least 50 words long.

PSY 550 Week 8 Discussion 2

A researcher computed the F ratio for a four-group experiment. The computed F is 4.86. The degrees of freedom are 3 for the numerator and 16 for the denominator.

  1. Is the computed value of F significant at p < .05? Explain.
  2. Is it significant at p < .01? Explain.

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PSY 550 Research Methods

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