What kind of statistical test did the author run


Assignment: Spot The Study Design

Study One Results Section:

To measure amount of violent video game play, participants wereasked to name their three favorite video games, to indicate how oftenthey play each video game (on a scale from 1 = sometimes to 7 =very often), and to rate how violent the content of each video gamewas (on a scale from 1=not at all to 7=very). As in previous research(e.g., Anderson & Dill, 2000; Greitemeyer, 2014), for each video game,the frequency of game play was multiplied by violent content. Thesethree violent video game exposure scores were then summed to providea measure of the amount of violent video game play.

The expanded version of the Comprehensive Assessment of SadisticTendencies (Buckels&Paulhus, 2014) was used to assess everyday sadism, which contains 18 items. A sample item is: "I was purposelymean to some people in high school." To measure narcissism, psychopathy, and Machiavellianism,we used the Dirty Dozen, with fouritems per subscale (Jonason& Webster, 2010). Sample items are: "Itend to want others to pay attention to me" (narcissism), "I have useddeceit or lied to getmy way" (Machiavellianism), and "I tend to be cynical"(psychopathy). Both sadistic tendencies and the Dark Triad itemswere assessed on a scale from 1 (strongly disagree) to 5 (stronglyagree). To measure trait aggression, participants responded to theshort version of the Buss and Perry aggression questionnaire (Bryant& Smith, 2001),which contains 12 items (e.g., "I have threatened peopleI know.") These items were assessed on a scale from 1 (very unlike me)to 5 (very like me). To measure the Big 5, a brief version was employed(Gosling, Rentfrow, & Swann, 2003). There are two items per scale.Some scale reliabilities were relatively poor, which is a typical psychometriccost of using short measures (Gosling et al., 2003). The Big 5items were assessed on a scale from 1 (disagree strongly) to 7 (strongly agree.

Allmeasures are shown in Table 1. In support of our central hypothesis, violentvideo game play was positively associated with everyday sadismat both times of measurement. In addition, amount of violent videogame play was consistently positively associated with trait aggressionand the Dark Triad and was negatively associated with agreeableness.

Study Two Results Section

Researchers examined the effect of perceived control on health complaints of geriatric patients in a long-term care facility. Thirty patients were randomly selected to participate in the study. Half were given a plant to care for and half were given a plant, but the care for the plant wasturned over to the staff. The number of health complaints was recorded for each patient over a seven day period. Researchers found that those geriatric patients who directly cared for the plants reported fewer health complaints (M = 16.60, SD = 7.79) than those given plants cared for by the long-term care facility staff (M = 27.07, SD = 7.74), t(28) = 3.69, p < .001

Study Three Results Section

The current study examined the clinical efficacy of a new antidepressant. Depressed patients were randomly assigned to one of three groups: a placebo group, a group that received a low dose of the drug, and a group that received a moderate dose of the drug. After four weeks of treatment, the patients completed the Beck Depression Inventory. The higher the score, the more depressed the patient. There was a significant difference, F(2, 223) = 3.56, p < .05. Follow-up Tukey post-hoc tests showed that participants showed significantly less depression as measured by the Beck Depression Inventory in both the low-dose drug condition (M = 5.66, SD = 1.22) and the moderate-dose condition (M = 6.12, SD = 1.18) than the placebo condition (M = 8.87, SD = 1.65). However, the low-dose and moderate-dose conditions did not differ from each other.

Study Four Results Section:

A study wanted to examine the effect of a new Federal Drug Administration (FDA) e-cigarette warning label on college students' perceived advantages and risks of e-cigarette use, as well as students' intentions to use e-cigarettes. Using college students at a Midwestern university, the study measured 338 studentattitudes toward e-cigarettes both prior to and after exposing them to the warning label proposed by the FDA. Findings showed that college students' perceived advantages of e-cigarette use were positively related to their intentions to use e-cigarettes, t(337) = 4.67, p< .01. However, their perceived risks were negatively associated with their intentions, t(337) = -8.56, p< .001. Participants also expressed less intention to use e-cigarettes after reading the new label, t(337) = 4.56, p< .05. The warning label proposed by the FDA is thus effective, though it has room for improvement to make a greater impact on e-cigarette use intention.

Study Five Results Section

This study makes an original and rigorous contribution to the psychology of sport injuryliterature by examining the efficacy of emotional disclosure to promote sport-injury-relatedgrowth (SIRG). Participants (N = 45) were assigned to one of three groups (i.e., written disclosure[WD, where participants were asked to write about their deepest thoughts and feelings regarding their recent sporting injury], verbal disclosure [VD, where participants were asked to talk about their deepest thoughts and feelings regardingtheir recent sporting injury into an audio-tape recorder], or control [C, where participants were asked to write facts about their daily events). The VD group(M = 40.17, SD = 26.15) experienced SIRG to a much greater extent than the WD group (M = 44.47, SD = 19.71) and the C group (M = 42.67, SD = 21.49), F(2, 43) = 7.86, p< .05. There was no significant difference between the WD and control groups.Practical implications are considered at intrapersonal, interpersonal, institutional, and culturallevels.

Discussion question for each of the above study.

1. What kind of study design is this (experimental or correlational)?

2. If experimental, what is the independent variable?

3. If experimental, what is the dependent variable?

4. What kind of statistical test did the author run, and how do you know the used this test?

5. What do you think the null and alternative hypotheses are in this study? You might have to guess, but make it an educated guesses!

Format your assignment according to the following formatting requirements:

1. The answer should be typed, double spaced, using Times New Roman font (size 12), with one-inch margins on all sides.

2. The response also includes a cover page containing the title of the assignment, the student's name, the course title, and the date. The cover page is not included in the required page length.

3. Also include a reference page. The Citations and references should follow APA format. The reference page is not included in the required page length.

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