Psy550 - Study guides, Class notes & Summaries

1. Compare and contrast the following terms: (a) test-retest reliability with inter-rater reliability, (b) content validity with both predictive validity and construct validity, and (c) internal validity with external validity. 2. Use Stevens’ model of measurement scales to answer these questions: What type of scale is used when the variable is social class? Explain. What type of scale is used when the variable studied is a Top 40 list of popular songs? Explain. What type of ...

WK 7 DQ 2 (Elaborated)PSY550-Research MethodsWK 7 DQ 2 (Elaborated)PSY550-Research MethodsTopic 7 DQ 2 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.

2021 Final Exam (Elaborated)PSY550-Research Methods2021 Final Exam (Elaborated)PSY550-Research Methods2021 Final Exam (Elaborated)PSY550-Research Methods.2021 Final Exam (Elaborated)PSY550-Research MethodsChuck Wagon is very excited about the within-subjects approach. “Now I’ll never need to run large numbers of subjects again,” he says. However, Chuck has forgotten that within-subjects designs may be a) useless, b) impossible, c) confounded by order effects, or d) impractical when excessi...

WK 8 DQ 2 (Elaborated)PSY550-Research Methods.WK 8 DQ 2 (Elaborated)PSY550-Research Methods.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

WK 6 DQ 2 (Elaborated)PSY550-Research Methods.WK 6 DQ 2 (Elaborated)PSY550-Research Methods.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. A between-subjects experiment would include a control group and an experimental group.

WK 7 DQ 2 (Elaborated)PSY550-Research MethodsWK 7 DQ 2 (Elaborated)PSY550-Research MethodsTopic 7 DQ 2 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.

wk6 dq 2 (Elaborated)PSY550-Research Methodswk6 dq 2 (Elaborated)PSY550-Research Methodswk6 dq 2 (Elaborated)PSY550-Research MethodsSuppose 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 (nondirectional) test. Draw a simple figure to illustrate the relationship between the critical and the computed values of t fo...

WK 8 DQ 1Participation G2 (Elaborated)PSY550-Research Methods-2021 WK 8 DQ 1Participation G2 (Elaborated)PSY550-Research MethodsWK 8 DQ 1Participation G2 (Elaborated)PSY550-Research MethodsPSY 550 Topic 8 DQ 1 Participation 2 Your research topic was intriguing and hit close to home as an Army Servicemember. In your study analysis you stated, “This paper is intended to describe a viable alternative to improving the psychological well-being and overall general health in military personnel trans...

WK 6 DQ1 (Elaborated)PSY550-Research MethodsWK 6 DQ1 (Elaborated)PSY550-Research MethodsContrast the three types of factorial designs. Definitions A factorial design is a research design in which participants are analyzed, observed, and monitored across the combination of levels with two or more factors. The three types of factorial designs are between subjects’ design, mixed factorial design, and within-subject design (Privitera, 2019)WK 6 DQ1 (Elaborated)PSY550-Research MethodsContrast the t...

WK 4 DQ 2 (Elaborated)PSY550-Research Methods