Assignment
Imagine a researcher is interested in the relationships amongteachers'self-esteem, perceptions of their principals'conflict management style, and productivity. A convenience sample of 40 teachers was used. These teachers completed a questionnaire including a number of demographic questions as well as measures to assess perceptions of principal conflict management style, self-esteem, and productivity. The researcher unfortunately experienced time management issues for this study; consequently, the literature to select measures was hurriedly reviewed. The following scores are from the self-esteem instrument (ScoreOne) using a 100-point scale. Please use these data to complete the questions below (these data have already been entered in a SPSS file; see the note below the data table).
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Self-esteem scores 1
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64
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68
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74
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75
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76
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79
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80
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82
|
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68
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70
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74
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76
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78
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79
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82
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85
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71
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73
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75
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|
77
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78
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80
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83
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86
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73
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74
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77
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|
77
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78
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81
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84
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87
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|
77
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71
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|
75
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76
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79
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83
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89
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91
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After the researcher returned to the literature, a better measure of self-esteem was identified. The same sample of teachers completedthe new self-esteeminstrument (ScoreTwo) also using a 100-point scale.Here are their scores:
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Self-esteem scores 2
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95
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87
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79
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78
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85
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96
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90
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|
92
|
|
86
|
|
74
|
|
79
|
|
85
|
|
81
|
|
83
|
|
96
|
|
84
|
|
75
|
|
89
|
|
93
|
|
77
|
|
76
|
|
87
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|
84
|
|
92
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|
99
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|
83
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84
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|
76
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|
75
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|
72
|
|
88
|
|
87
|
|
84
|
|
83
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|
94
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|
87
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|
79
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|
76
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|
79
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94
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Download the SPSS data set:teachersurvey.sav. Not all of the variables in that SPSS file will be used for this assignment.
Part of the goal of this activity is to explore the various tools under the ANALYZE tab in SPSS, the more exploring the more comfortable it will become. Please note in the data set the self-esteem scores are named simply ScoreOne and ScoreTwo.
In this SPSS assignment, use the tools learned in this course thus far, with an emphasis on the toolsacquired in Gravetter and Wallnau (2013)Chapters 5 and 6.
1.) For each set of self-esteem scores, create an SPSS output of thedescriptive statistics with the mean and standard deviation of both self-esteem assessments.
a.) What are the mean and standard deviationof self-esteem 1 and self-esteem 2 using APA style?
b.) Participant 10's score on ScoreOne was 70. It was 74 on ScoreTwo. Using the mean and standard deviations from item 1.a, what steps (statistical tests) would be employed to compare these two scores?
c.) Create frequency distribution histograms for both sets of data. Visually inspect the distributions and describe how they compare.How might the selected sample and the sample size influence the distributions?
2.) Transform the X values into z-scores and re-run the descriptive statistics for each set of self-esteem scores.
a.) What are the mean and standard deviation for the standardized scores (z-scores) for ScoreOne and ScoreTwousing APA style? Why were these values obtained? Provide a research example in your field where the use of standardized scores (z-scores) might be helpful.
b.) Using standardized data (z-scores), can the individuals' scores on ScoreOne and ScoreTwo be compared? Why or why not?
c.) Compare the histograms of the raw data to the standardized data.Provide SPSS output to support the answer.
Attachment:- datafiles.zip