代做22LLP207: Research Methods SPSS 2: Descriptives and Internal Reliability代写Java程序

22LLP207: Research Methods

SPSS 2: Descriptives and Internal Reliability

1. Download the file “P2_career_interests.sav” from the LEARN and open it using SPSS software.

• The dataset contains responses to a “career interests” questionnaire completed by 250 people. People were asked to rate how interested they were in pursuing a career in this job role using a sliding ‘visual analogue’ rating scale running from very low (0) to very high (8). Data source: http://psych.colorado.edu/~carey/courses/psyc7291/ClassDataSets.htm

• There is no missing data or reverse-coded items in this particular dataset

• Also fefer to your lecture slides from Lecture 5 for detailed guidance on performing the SPSS analyses requested below.

• Although we will not be entering and labelling data in this practical exercise, look carefully at how the dataset is set up. Data is entered simply by clicking on a cell and typing it in, just like Excel software, via the “Data View” tab (see the bottom left corner of the screen). Labels are entered by typing in the appropriate cells via the “Variable View” tab (see bottom left corner of the screen).

2. Calculate the means and standard deviations of each of the following variables and write them in the table below to two decimal places.

Job role	Mean interest rating	Standard Deviation
Carpenter
Forest Ranger
Mortician
Police Officer
Fire Fighter
Sales Representative
Teacher
Business Executive
Stockbroker
Artist
Social Worker
Truck Driver
Doctor
Vicar
Actor
Lawyer
Architect
Landscaper

3. Download the file “Graphs_LLP207.xls” from the LEARN and open it using Excel

4. Draw a line graph of the mean interest rating for each job role, using the appropriate table and graph template in the Excel file. (You may, if you wish, sort the job roles into numerical order of their mean interest rating before graphing them.) Label the graph and its axes.

5. Calculate the Cronbach’s alpha reliability coefficient for each of these psychometric scales and write these in the table below.

6. Compute an overall psychometric scale score for each job family from the mean of the constituent item ratings and save these as new variables, naming each with the appropriate job family label.

7. Calculate the mean and standard deviation for each psychometric scale score and write these in the table below also.

Job Family	Cronbach’s alpha (α) for psychometric scale	Mean psychometric scale score (mean of the constituent item ratings)	Standard deviation of the psychometric scale score
Academic Jobs · Lawyer · Mortician · Doctor · Stockbroker · Architect · Sales Representative · Business Executive
Manual Jobs · Landscaper · Forest ranger · Truck driver · Carpenter
Caring jobs · Social worker · Teacher · Vicar
Emergency service jobs · Police Officer · Firefighter
Artistic jobs · Actor · Artist

8. Draw a bar graph of the mean psychometric scale score for each job family, using the appropriate table and graph template in the Excel file. Label the graph and its axes.