Domenica DiStasio 31138525 Stress estimate project Method and Results sections In class lab worksheet Concepts independent samples t test Pearson s correlation A Method Data Processing section We will do this together as a class ALL of the steps need to go in a Data Processing section of Method section 1 Look at the survey questions Which ones need to be reverse coded The ones that need to be reverse coded are items 4 5 6 7 9 10 and 13 2 What steps did we take to reverse code them The steps we took to reverse code them were going into transform and then recode into the same variable and changing the values We made 0 4 1 3 3 1 and 4 0 3 Now we need to calculate the Mean Score How did we do this We calculated the mean score by going into transform compute variable and then putting in MEAN Item 1 14 B Descriptive Analyses 1 Each row is one participant s data How many participants in total 245 2 In what order would you like to explore the social media accounts Why The 2 social media accounts I am going to explore are Instagram and Facebook I am picking these two because I know the most about them and I think they are two of the higher stressors 3 Go to Analyze Descriptive statistics Frequencies pull your first variable over to the right side and select OK How many participants in each group 217 Instagram 4 Go to Analyze Descriptive statistics Frequencies pull your second variable over to the right side and select OK How many participants in each group 235 Snapchat 6 Go to Analyze Descriptive statistics Frequencies pull your third variable over to the right side and select OK How many participants in each group 218 Facebook 7 Go to Analyze Descriptive statistics Frequencies pull your fourth variable over to the right side and select OK How many participants of each group 138 Twitter C Inferential Analyses Categorical Variables 1 T tests What two categorical variables will you be testing The two variable we are testing is number of accounts and number of hours spent on it T TEST 1 a Go to Analyze Compare Means Independent samples t test b Select variables 1 Put the average stress variable in the test variable box 2 Put your variable in the grouping variable A DEFINE GROUPS B Enter 0 for group 1 1 for group 2 C Select CONTINUE OK Domenica DiStasio 31138525 T TEST 1 C First look at the means and standard deviations Instagram What was the average time for the GROUP 1 condition M 1 9554 SD 70448 What was the average time for the GROUP 2 condition M 1 8878 SD 60339 d Next look at the box labeled Independent samples t test Look at the top row ignore the bottom row t 539 df 242 p 591 Is the p value above or below 05 above What is the likelihood that our results are due to chance 59 1 Does this suggest the results are significant or not These results are not significant because the p value is not below 05 For your Discussion section Why might this be The impact of having an Instagram did not affect stress e Create a statistical statement of the finding t 242 539 p 591 T TEST 2 f Follow these same steps for your second comparison Facebook What was the average time for the GROUP 1 condition M 1 7457 SD 67514 What was the average time for the GROUP 2 condition M 1 9152 SD 606 g Next look at the box labeled Independent samples t test Look at the top row ignore the bottom row t 1 309 df 241 p 192 Is the p value above or below 05 above What is the likelihood that our results are due to chance 19 2 Does this suggest the results are significant or not These results are not significant because the p value is not below 05 For your Discussion section Why might this be The impact of having a Facebook account did not affect stress h Create a statistical statement of the finding t 241 1 309 p 192 Domenica DiStasio 31138525 2 Correlations What two continuous variables are you analyzing e g sleep exercise social media use The two continuous variables we are analyzing are average stress and hours of sleep The second variables are avg stress and exercise CORRELATION 1 1 ANALYZE CORRELATE BIVARIATE 2 Put AvgStress and Hours of Sleep under VARIABLES 3 Click OK Look at your output What is r Pearson correlation r is 280 What is p 000 001 Is the p value above or below 05 Below What is the likelihood that our results are due to chance There is a 0 likelihood that these results are due to chance Does this suggest the correlation is significant or not This suggests that the correlation is significant What is the direction of the correlation is r positive or negative The direction of the correlation is negative Write your statistical statement r 280 p 001 For your Discussion section Why might this be The amount of sleep you get is correlated with your stress levels negatively CORRELATION 2 Repeat the steps above for your second variable What is r 021 What is p 749 Is the p value above or below 05 above What is the likelihood that our results are due to chance 74 9 Does this suggest the correlation is significant or not This suggests the correlation is not significant What is the direction The direction of the correlation is positive Write your statistical statement r 021 p 749 For your Discussion section Why might this be Exercise does not affect stress levels D Figures and Tables Section 1 Generate a graph of the relationship between sleep and stress A GRAPHS LEGACY DIALOG SCATTER SIMPLE SCATTER B Under Y axis put Hours of sleep C Under X axis put AvgStress Does this graph look how you expected it to from the Pearson s correlation for sleep and stress Yes this graph does look the way we expected it too because it does have a negative correlation which is what we expected Format the figure in APA style and include it in your report Domenica DiStasio 31138525