Please use the dataset provided to calculate all results and do a simple write-up of the results. To calculate the results, you need to use the PSPP software. I have provided the dataset and an...

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Please use the dataset provided to calculate all results and do a simple write-up of the results. To calculate the results, you need to use the PSPP software. I have provided the dataset and an example of how the write needs to be. In order to do the write up, I have also provide the paper with the Hypothesis and the research questions. This needs to be done in APA style and must include in-text citations. I would also require a bibliography for the references. Can you provide a link or the references?


Microsoft Word - APA Results Write-up Sample 1 1 N. WILLS PSYC 499 Chapter 4: Results Insert chapter introduction here… Screening Descriptive statistical analyses where conducted to screen all data entry errors and missing data. There were no errors, but there were missing data. Demographic The sample consisted of 439 participants, there were some missing data for the primary variables; however, I opted to use pairwise deletion during analysis instead of removing the participants. There was a total of 42.1% male (n = 185) and 57.9% females (n = 254). The ages of the participants ranged from 18 years to 82 years old with an average age of 37 years (M = 37.44, SD = 13.20). Preliminary Analysis Reliability All scales used in this study showed good internal consistency: PCOISS (α = .90, n = 432), Optimism Scale (α = .80, n = 435), and PSS-10 (α = .85, n = 433). All items were positively correlated in the Corrected Item-Total Correlation column for all three scales. For this reason, no items were removed in the calculation of the total scores for all scales (see Pallant, 2016). Commented [NW1]: Introduces briefly what is addressed in the chapter and the software (e.g. PSPP) you used to analyze your data. Commented [NW2]: Give step by step account of how you checked the data for errors and fixing or removing these errors. Commented [NW3]: Provide the means, standard deviations, frequencies, etc. for your sample characteristics or demographics in the study. Explain how many persons were included in your sample and why. Support all rational with citations for your decisions. This is where you also describe how you cleaned data (remove persons) and why. Commented [NW4]: Note: This is left generally as participants for this sample paper. For your thesis - Remember to use the exact sample you are investigating – e.g. students, employees, etc. Commented [NW5]: If you are removing all participants with missing data for the primary variables (IVs and DV), this must be communicated at this point. Commented [NW6]: Always italicized letter in the statistical presentation. Ensure to use small n as you are not looking at the entire targeted population but a sample. Commented [NW7]: Always present the standard deviation (SD) along with the mean (M) Commented [NW8]: Discuss all scales scoring and reliabilities. If any item need to be removed, please provide information about what item was removed and why. Please support all decisions with citations. Commented [NW9]: Notice the differing n value, because not all participants provide scores for the PCOISS. However, this is not an issues if you decided to remove all participants with missing data for your primary variables (i.e. you IVs and DV) – the sample size will be the same as the overall sample size and you do not need to repeat n. 2 N. WILLS PSYC 499 Test of Assumptions Sample Size. The sample size for the standard multiple linear regression analysis was 424 participants. Using Steven (1996) suggestion of 15 persons per predictor the sample size exceeds the minimum requirement based on two predictors for standard multiple regression analysis to reduce the chances of a type I error. Number of Variables and Level of Data A standard multiple regression analysis requires two or more independent variables and one dependent variable (Pallant, 2010). In this study there are two predictors (PCOISS and optimism) and one dependent variable (perceived stress); thus, meeting the minimum requirements for this type of analysis. Pallant (2016), also stipulated that a standard multiple regression analysis requires that the predictors are continuous or dichotomous discrete variables and the dependent variable is continuous. All three variables in the study were measured at the interval level because they were measured using Likert scales. Independence of Observation and Related Pairs It is assumed that each participant completed the self-report questionnaire on their own without the influence of others. Furthermore, it is assumed that responses on the scales measuring the two independent variables (PCOISS and optimism) did not have an effect on each other’s responses (see Pallant, 2016). Hence, I assumed that the independence of observation is met for this analysis. As stated previous, pairwise deletion was chosen to address missing data ensuring that each participant provided a score for each of the primary variables; thus, meeting the assumption for related pairs (see Pallant, 2016). Commented [NW10]: Discuss all preliminary analysis (e.g. normality, outliers, linearity, etc.) for all statistical test (e.g. standard multiple regression) you applied for measure your research questions and hypotheses. Explain all decisions and support with cited information. Commented [NW11]: Given as part of the regression analysis output. However, if participants responded on all your scales, then this will be the same as your total sample size. 3 N. WILLS PSYC 499 Outliers The effects of outliers on the distribution of scores for the three variables were investigated at the univariate level of analysis, given that multiple regression analysis is very sensitive to outliers (see Pallant, 2016). An investigation of the mean and 5% trimmed mean showed that any outliers present were not affecting the mean, given that these two values were similar for each variable: PCOISS (M = 60.63, SD = 11.99, 5%TM = 60.92), optimism (M = 22.12, SD = 4.43, 5%TM = 22.28), and perceived stress (M = 26.73, SD = 5.85, 5%TM = 26.64). Normality The distribution for PCOISS was weakly, negatively skewed (S = -.40) with the majority of scores falling above the mean; it was also slightly leptokurtic (K = .26, see Figure 2). Similarly, the distribution for optimism was also weakly, negatively skewed (S = -.49) and leptokurtic (K = .21, see Figure 2). Contrastingly, perceived stress was weakly, positively skewed (S = .25) with the majority of scores falling below the mean; but it was also leptokurtic (K = .18, see Figure 2). All three distributions appeared to be not normal. Nevertheless, the sample size for this analysis is large; therefore, a non-normal distribution does not pose a problem reaching significant power during parametric testing (see Pallant, 2016). Commented [NW12]: No need to reinstate the n values here given that they would be same as the n values for the reliability analysis. 4 N. WILLS PSYC 499 Figure 2 Histograms of the Distributions for PCOISS, Optimism, and Perceived Stress Linearity and Homoscedasticity The scatterplot investigating the relationship between PCOISS and perceived stress showed a downward linear relationship, suggesting that the relationship between the two variables is negative (see Figure 3). Similarly, the scatterplot investigating the relationship between optimism and perceived was a downward liner relationship (see Figure 3). Both scatterplots showed a relatively cigar-shaped with the clusters predominantly packed closely Commented [NW13]: This is another option for presenting your figures to save on space. Once the figure is clear to understanding, you can combine them into one figure. If it becomes unclear the presenting them as separate figures. 5 N. WILLS PSYC 499 together with some dispersion, suggesting a moderate to strong effect size (see Pallant, 2016). Thus, the assumption of linearity and homoscedasticity was met for this analysis. Figure 3 A Scatterplot Showing the Relationship between Perfectionism and Psychological Wellbeing Multicollinearity and Singularity The occurrence of multicollinearity and singularity is a major problem in a standard multiple regression analysis (Pallant, 2016). It is assumed that singularity is not occurring between the predictors, given that they measure separate constructs and are not subscales of each other. The correlation matrix (Table 1) showed that the relationship between PCOISS and optimism (r = .51, p < .001)="" did="" not="" exceed="" a="" correlation="" coefficient="" of="" .7,="" therefore="" there="" appeared="" to="" be="" issue="" of="" multicollinearity="" (see="" pallant,="" 2016).="" this="" was="" further="" supported="" by="" the="" tolerance="" and="" variance="" inflation="" factor="" (vif).="" commented="" [nw14]:="" remember="" if="" p=".000" in="" the="" output,="" you="" cannot="" write="" that="" in="" your="" paper:="" use="" p=""><. 001="" instead.="" all="" other="" values="" can="" be="" written="" as="" p="…" (e.g.="" p="." 001,="" .002,="" .05,="" etc.).="" 6="" n.="" wills="" psyc="" 499="" table="" 1="" descriptive="" statistics="" and="" correlations="" for="" study="" variables="" variable="" n="" m="" sd="" 1="" 2="" 3="" 1.="" pcoiss="" 430="" 60.63="" 11.99="" —="" 2.="" optimism="" 435="" 22.12="" 4.43="" .51***="" __="" 3.="" perceived="" stress="" 432="" 26.73="" 5.85="" −.58***="" −.47***="" __="" ***="" p="">< .001="" (1-tailed).="" the="" relationship="" between="" pcoiss="" and="" optimism="" has="" a="" tolerance="" value="" of="" .74,="" which="" exceeded="" the="" criteria="" value="" of="" .1;="" therefore,="" the="" majority="" of="" variance="" in="" each="" variable="" is="" not="" explained="" by="" the="" other="" (see="" pallant,="" 2016).="" moreover,="" the="" vif="" for="" this="" relationship="" was="" 1.36,="" which="" did="" not="" exceed="" the="" criteria="" value="" of="" 10;="" thus,="" each="" variable="" did="" not="" explain="" the="" majority="" of="" variance="" in="" each="" other="" (see="" pallant,="" 2016).="" hence,="" it="" is="" assumed="" that="" there="" were="" not="" issues="" of="" multicollinearity="" in="" this="" analysis.="" main="" effects="" a="" standard="" multiple="" regression="" analysis="" was="" used="" to="" determine="" how="" well="" pcoiss="" and="" optimism="" predicted="" perceived="" stress.="" preliminary="" analyses="" were="" conducted="" to="" ensure="" that="" all="" test="" assumptions="" were="" satisfactorily="" met="" for="" this="" analysis.="" as="" a="" whole="" model="" pcoiss="" and="" optimism="" significantly="" predicted="" 38%="" of="" perceived="" stress="" (r2=".38," f="" [2,="" 422]="126.78," p="">< .001,="" table="" 2).="" the="" effect="" size="" was="" larger="" (f="" 2=".61," see="" cohen,="" 1992).="" commented="" [nw15]:="" apa="" states="" that="" the="" caption="" and="" title="" of="" the="" table="" and="" figures="" must="" be="" doubled-spaced.="" however,="" the="" text="" within="" the="" figures="" or="" table="" can="" be="" single,="" 1.5,="" or="" doubled="" –spaced.="" commented="" [nw16]:="" remember="" to="" use="" a="" one-tailed="" correlation="" analysis,="" when="" using="" it="" as="" part="" of="" the="" regression="" analysis.="" commented="" [nw17]:="" remember="" if="" p=".000" in="" the="" output,="" you="" cannot="" write="" that="" in="" your="" paper:="" use="" p=""><. 001="" instead.="" all="" other="" values="" can="" be="" written="" as="" p="…" (e.g.="" p="." 001,="" .002,="" .05,="" etc.).="" commented="" [nw18]:="" no="" need="" to="" reinstate="" the="" sample="" size="" for="" the="" analysis,="" since="" you="" communicated="" it="" as="" part="" of="" the="" discussion="" for="" the="" sample="" size="" test="" assumption.="" 7="" n.="" wills="" psyc="" 499="" table="" 2="" standardize="" regression="" coefficients="" predicting="" perceived="" stress="" (n="424)" variable="" b="" se="" 95%="" ci="" beta="" (β)="" t="" p="" ll="" ul="" (constant)="" 47.14="" 1.32="" 44.54="" 49.74="" .00="" 35.66=""><.001 pcoiss="" -.23="" .02="" -.27="" -.18="" -.46="" -10.28=""><.001 optimism="" -.31="" .06="" -.42="" -.19="" -.23="" -5.12=""><.001 note.="" r2=".38." ci="confidence" interval;="" ll="lower" limit;="" ul="upper" limit="" hypothesis="" 1="" h1:="" persons="" with="" high="" levels="" of="" pcoiss="" are="" more="" likely="" to="" have="" lower="" levels="" of="" perceived="" stress="" than="" persons="" with="" low="" levels="" of="" pcoiss.="" the="" correlation="" matrix="" (table="" 1)="" showed="" that="" optimism="" was="" significantly="" and="" negatively="" related="" to="" perceived="" stress="" (r="" (426)="-.58," p="">< .001).="" according="" to="" cohen="" (1988,="" as="" cited="" in="" cohen,="" 1992),="" this="" effect="" size="" is="" large.="" the="" standard="" multiple="" regression="" analysis="" showed="" that="" high="" levels="" of="" pcoiss="" significantly="" and="" uniquely="" predicted="" lower="" levels="" of="" perceived="" stress,="" (β="-.46," t="" [424]="-10.28," p="">< .001,="" table="" 2).="" therefore,="" it="" is="" concluded="" that="" high="" levels="" of="" pcoiss="" predict="" low="" levels="" of="" perceived="" stress="" among="" persons.="" hypothesis="" 2="" h2:="" persons="" with="" high="" levels="" of="" optimism="" are="" more="" likely="" to="" have="" lower="" levels="" of="" perceived="" stress="" than="" persons="" with="" low="" levels="" of="" optimism.="" the="" correlation="" matrix="" (table="" 1)="" showed="" that="" optimism="" was="" significantly="" and="" negatively="" related="" to="" perceived="" stress="" (r="" (432)="-.47," p="">< .001).="" according="" to="" cohen="" (1988,="" as="" cited="" in="" cohen,="" 1992),="" this="" effect="" size="" is="" moderate.="" the="" 8="" n.="" wills="" psyc="" 499="" standard="" multiple="" regression="" analysis="" showed="" that="" high="" levels="" of="" optimism="" significantly="" and="" uniquely="" predicted="" lower="" levels="" of="" perceived="" stress,="" (β="-.23," t="" [424]="-5.12," p="">< .001, table 2). therefore, it is concluded .001,="" table="" 2).="" therefore,="" it="" is="">
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Answer To: Please use the dataset provided to calculate all results and do a simple write-up of the results. To...

Prithwijit answered on Jun 25 2023
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