PSY 550 Week 1 Discussion 1 & 2
How does the scientific method point towards truth? What
is truth, and how do you know when you have found it?
Contrast deductive and inductive reasoning, and explain
how they can each be used to generate a hypothesis.
PSY 550 Week 2 Discussion 1 & 2
Definereliability andvalidity in
your own words. Briefly describe the different types of reliability and
validity, including why it is important to conduct a study that is reliable and
Stanley Milgram’s obedience to authority experiment is
one of the most controversial studies in psychology’s history. Considering this
example as well as others, critique such experiments from an ethical
PSY 550 Week 3 Discussion 1 & 2
Discuss the proper placement and usages of a table and a
figure within the manuscript.
Define the four general writing guidelines using APA
style. Why is it important to write using these guidelines when communicating
your study? Explain.
Discuss what stage in the publication process should
potential authors talk about publication credit. Explain.
Describe how the sections of a poster, for presentation,
PSY 550 Week 4 Discussion 1 & 2
In your own words, definenaturalistic ovservation.
Discuss examples of when a naturalistic observational study would be the most
appropriate design to select. What are two sources of bias during an
Discuss the advantages and disadvantages of the following
nonexperimental research methods: (a) naturalistic observations, (b) surveys,
and (c) correlational studies. If you were asked to use one of these designs in
a study next week, which nonexperimental design would you select and why?
PSY 550 Week 5 Discussion 1 & 2
One of the best-known longitudinal designs is Lewis Terman’s study of
giftedness. He began tracking gifted children into adolescence and adulthood in
1925; the study is supposed to conclude in 2020. Explain the unique benefits of
such a study, and then explain the problems caused by this type of design.
Explain the circumstances when a quasi-experimental
design would be preferable to a between-subjects design, but also discuss why
an explanatory research method is superior to a predictive method.
PSY 550 Week 6 Discussion 1 & 2
Contrast the three types of factorial designs.
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 Week 7 Discussion 1 & 2
Suppose that, for at-test, your computed value fort is
+3.28. The critical value oft is +2.048. Explain what this means.
Do you reject the null hypothesis or not? Now suppose that you have 28 degrees
of freedom and are using a two-tailed (nondirectional) test. Draw a simple
figure to illustrate the relationship between the critical and the computed
values oft for this result.
Choose an article from the newspaper, an online source,
or a magazine, then identify the descriptive statistics included in the
article. Were the statisitcs appropriately described in the article? Explain.
Discuss if the descriptive statistics used in your source supported the
arguments made in it. Were the descriptive statistics misleading? Explain.
PSY 550 Week 8 Discussion 1 & 2
Design a 10-12 slide PowerPoint presentation (not
including title and reference slides) focusing on the Research Proposal:
Project Paper (submitted last week). Consider aforementioned elements in the
5. Figures and Tables (total of two from paper)
Make sure your reference slide matches the references
from your proposal.
Include speaker notes below each content-related slide
that represent what would be said if giving the presentation in person. Expand
upon the information included in the slide and do not simply restate it. Please
ensure the speaker notes include a minimum of 50 words.
A researcher computed theF 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 ofF significant atp <
2. Is it significant atp < .01? Explain.