EXERCÍCIO 2 – ESTATÍSTICAS DESCRITIVAS
E ANÁLISE EXPLORATÓRIA DE DADOS
Investigação Científica em Psicologia: Teoria e Prática

SPSS

OUTPUT 1

 

Estatísticas Descritivas

 

 

Comandos [Ver Interface Gráfica]

 
GET
 
  FILE='C:\Documents and Settings\user\Desktop\E02_DATA.sav'.
 
DESCRIPTIVES
 
  VARIABLES=rc
 
  /STATISTICS=MEAN STDDEV RANGE MIN MAX SEMEAN.
 
DESCRIPTIVES
 
  VARIABLES=rc
 
  /STATISTICS=SUM VARIANCE KURTOSIS SKEWNESS.
 
 

Output

Descriptives

Descriptive Statistics

 

 

N

Range

Minimum

Maximum

Mean

Std. Deviation

Statistic

Statistic

Statistic

Statistic

Statistic

Std. Error

Statistic

RC

80

31

1

32

12,0125

,5559

4,9721

Valid N (listwise)

80

 

 

 

 

 

 

 

Descriptives

Descriptive Statistics

 

 

N

Sum

Variance

Skewness

Kurtosis

Statistic

Statistic

Statistic

Statistic

Std. Error

Statistic

Std. Error

RC

80

961

24,7214

1,3695

,2689

4,3289

,5318

Valid N (listwise)

80

 

 

 

 

 

 

 

 

SPSS

OUTPUT 2

Estatísticas Descritivas e Análise Exploratória de Dados

 

Comandos

 
GET
 
  FILE='C:\Documents and Settings\user\Desktop\E02_DATA.sav'.
 
EXAMINE
 
  VARIABLES=rc
 
  /PLOT  STEMLEAF
 
  /MESTIMATORS  HUBER(1.339) ANDREW(1.34) HAMPEL(1.7,3.4,8.5) TUKEY(4.685)
 
  /PERCENTILES(5,10,25,50,75,90,95) HAVERAGE
 
  /STATISTICS DESCRIPTIVES
 
  /CINTERVAL 95
 
  /MISSING LISTWISE
 
  /NOTOTAL.
 
 

Output [2A]

Explore

Case Processing Summary

 

 

Cases

 

Valid

Missing

Total

 

N

Percent

N

Percent

N

Percent

 

RC

80

100,0%

0

,0%

80

100,0%

 

 

Descriptives

 

 

Statistic

Std. Error

RC

Mean

12,0125

,5559

95% Confidence Interval for Mean

Lower Bound

10,9060

 

Upper Bound

13,1190

 

5% Trimmed Mean

11,6944

 

Median

11,0000

 

Variance

24,7214

 

Std. Deviation

4,9721

 

Minimum

1,0000

 

Maximum

32,0000

 

Range

31,0000

 

Interquartile Range

4,0000

 

Skewness

1,3695

,2689

Kurtosis

4,3289

,5318

 

M-Estimators

 

 

Huber's
M-Estimator(a)

Tukey's Biweight(b)

Hampel's
M-Estimator(c)

Andrews' Wave(d)

RC

11,5365

11,4165

11,4036

11,4247

a The weighting constant is 1,339.

b The weighting constant is 4,685.

c The weighting constants are 1,700, 3,400, and 8,500

d The weighting constant is 1,340*pi.

 

Percentiles

 

 

Percentiles

5

10

25

50

75

90

95

Weighted Average(Definition 1)

RC

3,1000

7,0000

10,0000

11,0000

14,0000

16,0000

24,8000

Tukey's Hinges

RC

 

 

10,0000

11,0000

14,0000

 

 

 

RC 

RC Stem-and-Leaf Plot
 
 Frequency    Stem &  Leaf
 
     4,00 Extremes    (=<3)
 
     1,00        0.  5
 
     4,00        0.  7777
 
     6,00        0.  889999
 
    26,00        1.  00000000000000001111111111
 
    18,00        1.  222222222223333333
 
    11,00        1.  44444445555
 
     4,00        1.  6667
 
     6,00 Extremes    (>=20)
 
 Stem width:        10
 
 Each leaf:       1 case(s)
 
 
 
 

Comandos

 
GET
 
  FILE='C:\Documents and Settings\user\Desktop\E02_DATA.sav'.
 
EXAMINE
 
  VARIABLES=rc BY sexo
 
  /PLOT BOXPLOT
 
  /COMPARE GROUP
 
  /STATISTICS DESCRIPTIVES
 
  /CINTERVAL 95
 
  /MISSING LISTWISE
 
  /NOTOTAL.
 
 

Output [2B]

Explore

SEXO

Case Processing Summary

 

 

Cases

Valid

Missing

Total

 

SEXO

N

Percent

N

Percent

N

Percent

RC

1

24

100,0%

0

,0%

24

100,0%

2

56

100,0%

0

,0%

56

100,0%

 

Descriptives

 

 

SEXO

Statistic

Std. Error

RC

1

Mean

11,8750

,7281

95% Confidence Interval for Mean

Lower Bound

10,3688

 

Upper Bound

13,3812

 

5% Trimmed Mean

11,5000

 

Median

11,0000

 

Variance

12,7228

 

Std. Deviation

3,5669

 

Minimum

7,0000

 

Maximum

25,0000

 

Range

18,0000

 

Interquartile Range

3,0000

 

Skewness

2,1685

,4723

Kurtosis

7,5262

,9178

2

Mean

12,0714

,7341

95% Confidence Interval for Mean

Lower Bound

10,6003

 

Upper Bound

13,5426

 

5% Trimmed Mean

11,7222

 

Median

11,5000

 

Variance

30,1766

 

Std. Deviation

5,4933

 

Minimum

1,0000

 

Maximum

32,0000

 

Range

31,0000

 

Interquartile Range

4,0000

 

Skewness

1,2191

,3190

Kurtosis

3,5171

,6283

 

RC

 

SPSS

OUTPUT 3

Coeficiente de Correlação

 

Comandos

 
GET
 
  FILE='C:\Documents and Settings\user\Desktop\E02_DATA.sav'.
 
CORRELATIONS
 
  /VARIABLES=rc re
 
  /PRINT=TWOTAIL NOSIG
 
  /MISSING=PAIRWISE.
 
GRAPH
 
  /SCATTERPLOT(BIVAR)=rc WITH re
 
  /MISSING=LISTWISE.
 
 

Output

Correlations

Correlations

 

 

RC

RE

RC

Pearson Correlation

1,0000

,6628(**)

Sig. (2-tailed)

,

,0000

N

80

80

RE

Pearson Correlation

,6628(**)

1,0000

Sig. (2-tailed)

,0000

,

N

80

80

** Correlation is significant at the 0.01 level (2-tailed).

 

Graph

 

 

 

SPSS: SYNTAX FILES

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BASES DE Dados

Última actualização: 2011-10-21