Week Six Lab
The school counselors made type 1 error for this research. If the school counselor had chosen
additional samples; the school could have included the Freshman students with lower SAT
scores; this may have eliminat
CLC VIDEO GAME VIOLENCE AND AGGRESSION
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Video Game Violence and Aggression
Grand Canyon University: PSY-550 (PSY-550-O500) Research Methods
CLC VIDEO GAME VIOLENCE AND AGGRESSION
November 28, 2016
2. What are the assumptions of a correlated-group t test?
This test is used to analyze the relationship between two variables under the following
1. The dependent variable is quantita
Topic 7 DQ 2
Explain the difference between a t test for independent groups and a t test for matched groups.
For t test for independent groups the reading are taken on different objects and no. of readings
in each group may or may not be same degrees of f
Topic 7 DQ 1
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 signific
Suppose that, for a t test, your computed value for t is +3.28. The critical value of t 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 (non
Research Method: PSY 550
Week one Assignment
Chapter 1 Module 1
2. Provide an argument for the idea that basic research is as important as applied research
This is a psychology research question
a. Applied Research is a type of research t
PSY 550 Research Methods
October 22, 2016
Chapter three Module 5
2. Identify the type of measure used in each of the following situations:
a. As you leave a restaurant, you are asked to answer a few questions regarding what you thought
Topic 3 DQ2
Discuss examples of when a naturalistic observational study would be the most appropriate
design to select
Naturalistic observation is a research method commonly used by psychologists and other social
scientists. This technique involves observ
Chapter 4 Module 7
2. Explain the difference between participant and nonparticipant observation and disguised and
Participants watch or engage freely and interact with a group, whereas nonparticipants
observed in a passive manner
Topic 1 DQ 1
How do descriptive, predictive, and explanatory methods of research differ from each other? In
what ways are they similar?
Explanatory Research: This is the method of research in which complete elucidation of research
aim followed by the disc
Topic 2 DQ 1
Using Stevens's four levels of measurement, give an example of nominal, ordinal, interval, and
ratio scales (do NOT use examples from the text or lecture).
Nominal: - Gender is a nominal level of measure since it can take only the values male
Topic 2 DQ 2
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 standpoint.
The one oath that psycholo
Topic 5 DQ 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.
Topic 3 DQ 1
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 n
Topic 5 DQ 1
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
Topic 6 DQ 2
The null hypothesis is a hypothesis which the researcher tries to disprove, reject or nullify.
The 'null' often refers to the common view of something, while the alternative hypothesis is what
the researcher really thinks is the cause of a ph
Topic 4 DQ1
Explain the circumstances when a quasi-experimental design would be preferable to a betweensubjects design, but also discuss why an explanatory research method is superior to a predictive
Quasi experimental design does not have the ran
Is the study replicable? (Did it actually replicateIf not, could you replicate it?) What is
the evidence for its replicability?
The study Children of /Mentally Ill Parents- a Pilot Study of a Group Intervention
Program Study, was published on 10/20/2015,
Laboratory Exercise page 276
2. To test the hypothesis in Exercise I the admissions counselors select a random sample of
freshman and compare their scores on the SAT to those of the populations of upperclassmen.
They find that the freshmen do in fact have