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##### CORRELATION Part 1: Green & Salkind: Lesson 31, Exercises 14

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Question;CORRELATIONPart 1:Green & Salkind: Lesson 31, Exercises 14The following helpful tips are numbered to correspond with the exercise number to which theyrefer (a dash indicates that no tips are needed):1. ---------- (2 pts for output and 2 pts each for ac)2. Answer this question in sentence form. Include the correlation (r) and degrees offreedom, the p value, and whether these values indicate a significant correlation betweenthe variables or not. (2 pts)3. All homework Results sections must follow the example given in the Course Contentdocument Writing Results of Statistical Tests in Current APA Format (Note: you do nothave to refer to a figure). (2 pts)4. ---------- (2 pts)Part 2:1. A clinical psychologist would like to determine whether there is a relationship betweenobserver ratings of childrens anxious behaviors and scores on an established diagnosticinterview assessing anxiety disorders. He administers the diagnostic interview to 28 childrenand records these scores. He then trains an observer to independently rate anxiety-specificbehaviors for each of the 28 children. These ratings are totaled for an overall anxiousbehavior score. On both the interview and the behavioral ratings, a higher score indicateshigher levels of anxiety. These scores are listed in the table on the following page. Conduct aPearson correlation coefficient analysis to determine whether there is a relationshipbetween the interview scores and the behavioral ratings for this group of children.The steps will be the same as the ones you have been practicing in Part 1 of the assignmentthe only difference is that you are now responsible for creating the data file as well.Remember to name and define your variables under the Variable View, then return to theData View to enter the data. (3 pts)Page 1 of 4PSYC 355Interview(Range 09)3249774833216887123358746652AnxiousBehavior Rating(Range 025)76621201810957531719232247731320161213181592. Create a simple scatterplot of the relationship between these variables (define interview scoresas the x-axis and behavioral ratings as the y-axis). (3 pts)3. Write an APA-style Results section describing the outcome. All homework Results sectionsmust follow the example given in the Course Content document Writing Results of StatisticalTests in Current APA Format (Note: you do not have to refer to a figure). Be sure to includethe direction of the relationship between the variables (positive? negative? none?) in yoursection. (3 pts)Page 2 of 4PSYC 3554. A neuropsychologist is assessing the relationship between brain function and performance ona visuo-spatial task. He administers a test to 14 patients on which scores can range from 120:a high score indicates normal brain function, and a low score indicates some levels of braindysfunction. He then asks each patient to complete a maze and records the number ofmistakes the patient makes from start to finish. The scores are listed in the table below.Conduct a Pearson correlation coefficient analysis to determine what the relationship is,if any, between brain function and performance on the maze task.The steps will be the same as the ones you have been practicing in Part 1 of the assignmentthe only difference is that you are now responsible for creating the data file as well.Remember to name and define your variables under the Variable View, then return to theData View to enter the data. (3 pts)Dysfunction Score38941561817196520175Number ofMistakes on MazeTask25181826619346161425235. Create a simple scatterplot of the relationship between these variables. (3 pts)6. Write an APA-style Results section describing the outcome. All homework Results sectionsmust follow the example given in the Course Content document Writing Results of StatisticalTests in Current APA Format (Note: you do not have to refer to a figure). (3 pts)7. The null hypothesis for this scenario can be written as follows: There is no relationshipbetween level of brain function and the number of mistakes made on a maze task. Based onyour results, should this hypothesis be rejected or retained, and why? Write your answer insentence form. (2 pts)Page 3 of 4PSYC 355Part 3: Cumulative Homework1. A developmental psychologist is studying whether students in a certain preschool programperform better than preschoolers in the state in general on a measure of math readiness. Themean score for preschoolers in the state on the measure is 87. The psychologist tests thepreschoolers in the program and records the scores in the table below. Choose the correct testto analyze this question, set up the SPSS file, and run the analysis. Follow the directions underthe table below.Math ReadinessScores908986917892887379898891938992a) Paste appropriate SPSS output. (2 pts)b) Paste appropriate SPSS graph. (2 pts)c) Write a Results section in current APA style describing theoutcome. All homework Results sections must follow theexample given in the Course Content document Writing Resultsof Statistical Tests in Current APA Format (Note: you do not haveto refer to a figure). (2 pts)

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