Samenvatting Syntax oefeningen MDA

Verkennen van data
Oefening pagina 3: stress

DATASET ACTIVATE DataSet1.
DESCRIPTIVES VARIABLES=item116 item117 item118 item119 item120 item121 item122 item123 item124
item125 item126 item127 item128 item129 item130 item131 item132 item133 item134 item135
item136 item137 leeftijd geslacht gehuwd kinderen diploma bedranc uren voltijds ploeg contract leiding
/SAVE
/STATISTICS=MEAN STDDEV MIN MAX.

EXAMINE VARIABLES=bedranc
/PLOT BOXPLOT STEMLEAF HISTOGRAM
/COMPARE GROUPS
/PERCENTILES(5,10,25,50,75,90,95) HAVERAGE
/STATISTICS DESCRIPTIVES EXTREME
/CINTERVAL 95
/MISSING LISTWISE
/NOTOTAL.

EXAMINE VARIABLES=uren BY geslacht
/PLOT=BOXPLOT
/STATISTICS=NONE
/NOTOTAL.

COMPUTE score=SUM(item116 to item137).
EXECUTE.

CORRELATIONS
/VARIABLES=item116 item117 item118 item119 item120 item121
/PRINT=TWOTAIL NOSIG
/MISSING=PAIRWISE.

RELIABILITY
/VARIABLES=item116 item117 item118 item119 item120 item121
/SCALE('ALL VARIABLES') ALL
/MODEL=ALPHA
/STATISTICS=DESCRIPTIVE SCALE
/SUMMARY=TOTAL.

GRAPH
/SCATTERPLOT(MATRIX)=uren leeftijd kinderen bedranc
/MISSING=LISTWISE.

CORRELATIONS
/VARIABLES=kinderen uren bedranc leeftijd
/PRINT=TWOTAIL NOSIG
/MISSING=PAIRWISE.

Oefening pagina 19: stress

DATASET ACTIVATE DataSet1.
DESCRIPTIVES VARIABLES=uren
/STATISTICS=MEAN STDDEV MIN MAX.

RMV /uren_1=SMEAN(uren).

DESCRIPTIVES VARIABLES=uren_1
/SAVE
/STATISTICS=MEAN STDDEV MIN MAX.

, NPAR TESTS
/K-S(NORMAL)=uren_1
/MISSING ANALYSIS.

PPLOT
/VARIABLES=uren
/NOLOG
/STANDARDIZE
/TYPE=Q-Q
/FRACTION=BLOM
/TIES=MEAN
/DIST=NORMAL.

PPLOT
/VARIABLES=uren
/NOLOG
/NOSTANDARDIZE
/TYPE=P-P
/FRACTION=BLOM
/TIES=MEAN
/DIST=NORMAL.

GRAPH
/HISTOGRAM=uren.

Oefening pagina 32: Employee Data

DATASET ACTIVATE DataSet3.
2) DESCRIPTIVES VARIABLES=id gender bdate educ jobcat salary salbegin jobtime prevexp minority
leeftijd looncat
/STATISTICS=MEAN STDDEV MIN MAX.

4) CORRELATIONS
/VARIABLES=id gender bdate educ jobcat salary salbegin jobtime prevexp minority leeftijd looncat
/PRINT=TWOTAIL NOSIG
/MISSING=PAIRWISE.

5) RECODE salary (Lowest thru 34999=1) (70001 thru Highest=3) (35000 thru 70000=2) INTO klassalar.
VARIABLE LABELS klassalar 'klassalar'.
EXECUTE.

NONPAR CORR
/VARIABLES=klassalar jobcat
/PRINT=BOTH TWOTAIL NOSIG
/MISSING=PAIRWISE.

6) EXAMINE VARIABLES=id bdate educ jobcat salary salbegin jobtime prevexp minority leeftijd looncat BY
Gender
/PLOT BOXPLOT STEMLEAF
/COMPARE GROUPS
/STATISTICS DESCRIPTIVES
/CINTERVAL 95
/MISSING LISTWISE
/NOTOTAL.

9) GRAPH
/SCATTERPLOT(BIVAR)=salbegin WITH salary
/MISSING=LISTWISE.