Genereller/Gesamt- Analyse-Datensatz
Datei-Format
Daten-Format
BT22 nach-Berichts-GADS
varName - VariablennamevarLabel - Variablenlabelformat - SPSS-Formatvalue - numerischer WertvalLabel - Wertelabelmissings - Missingtags (miss oder valid)data_table - Datenblatt         varName                                         varLabel format
165 computer_age                           First use of computers   F8.0
166 computer_age                           First use of computers   F8.0
167 computer_age                           First use of computers   F8.0
168 computer_age                           First use of computers   F8.0
169 computer_age                           First use of computers   F8.0
331      norms_f Subjective Norms - Parents Like Mathematics (T1)   F8.0
332      norms_f Subjective Norms - Parents Like Mathematics (T1)   F8.0
333      norms_f Subjective Norms - Parents Like Mathematics (T1)   F8.0
334      norms_f Subjective Norms - Parents Like Mathematics (T1)   F8.0
356     repeated                                 Grade repetition   F8.0
357     repeated                                 Grade repetition   F8.0
    display_width labeled value               valLabel missings data_table
165            NA     yes     1 6 years old or younger    valid      noImp
166            NA     yes     2          7-9 years old    valid      noImp
167            NA     yes     3        10-12 years old    valid      noImp
168            NA     yes     4 13 years old  or older    valid      noImp
169            NA     yes     5                  Never    valid      noImp
331            NA     yes     1      Strongly disagree    valid      noImp
332            NA     yes     2               Disagree    valid      noImp
333            NA     yes     3                  Agree    valid      noImp
334            NA     yes     4         Strongly agree    valid      noImp
356            NA     yes     1 Did not repeat a grade    valid      noImp
357            NA     yes     2       Repeated a grade    valid      noImpnoImpimpPVswgtsnoImp
imp
PVs
wgts
namesGADS() - Variablennamen und DatenbankstrukturextractMeta() - Extraktion MetadatengetGADS() - Extraktion aus DBgetGADS_fast() - Extraktion aus DB mit CachinggetTrendGADS() - Extraktion Trend-GADSe aus DBextractData2() - Extraktion DatenPISA-Plus Daten (FDZ Campus Files)
Datenbankstruktur und Variablennamen inspizieren
$noImp
  [1] "idstud"       "idschool"     "idclass"      "schtype"      "sameteach"   
  [6] "g8g9"         "ganztag"      "classsize"    "repeated"     "gender"      
 [11] "age"          "language"     "migration"    "hisced"       "hisei"       
 [16] "homepos"      "books"        "pared"        "computer_age" "internet_age"
 [21] "int_use_a"    "int_use_b"    "truancy_a"    "truancy_b"    "truancy_c"   
 [26] "int_a"        "int_b"        "int_c"        "int_d"        "instmot_a"   
 [31] "instmot_b"    "instmot_c"    "instmot_d"    "norms_a"      "norms_b"     
 [36] "norms_c"      "norms_d"      "norms_e"      "norms_f"      "anxiety_a"   
 [41] "anxiety_b"    "anxiety_c"    "anxiety_d"    "anxiety_e"    "selfcon_a"   
 [46] "selfcon_b"    "selfcon_c"    "selfcon_d"    "selfcon_e"    "worketh_a"   
 [51] "worketh_b"    "worketh_c"    "worketh_d"    "worketh_e"    "worketh_f"   
 [56] "worketh_g"    "worketh_h"    "worketh_i"    "intent_a"     "intent_b"    
 [61] "intent_c"     "intent_d"     "intent_e"     "behav_a"      "behav_b"     
 [66] "behav_c"      "behav_d"      "behav_e"      "behav_f"      "behav_g"     
 [71] "behav_h"      "teach_a"      "teach_b"      "teach_c"      "teach_d"     
 [76] "teach_e"      "cognact_a"    "cognact_b"    "cognact_c"    "cognact_d"   
 [81] "cognact_e"    "cognact_f"    "cognact_g"    "cognact_h"    "cognact_i"   
 [86] "discpline_a"  "discpline_b"  "discpline_c"  "discpline_d"  "discpline_e" 
 [91] "relation_a"   "relation_b"   "relation_c"   "relation_d"   "relation_e"  
 [96] "belong_a"     "belong_b"     "belong_c"     "belong_d"     "belong_e"    
[101] "belong_f"     "belong_g"     "belong_h"     "belong_i"     "attitud_a"   
[106] "attitud_b"    "attitud_c"    "attitud_d"    "attitud_e"    "attitud_f"   
[111] "attitud_g"    "attitud_h"    "grade_de"     "grade_ma"     "grade_bio"   
[116] "grade_che"    "grade_phy"    "grade_sci"   
$PVs
[1] "idstud"    "dimension" "imp"       "value"    Metadaten extrahieren
         varName                                         varLabel format
165 computer_age                           First use of computers   F8.0
166 computer_age                           First use of computers   F8.0
167 computer_age                           First use of computers   F8.0
168 computer_age                           First use of computers   F8.0
169 computer_age                           First use of computers   F8.0
331      norms_f Subjective Norms - Parents Like Mathematics (T1)   F8.0
332      norms_f Subjective Norms - Parents Like Mathematics (T1)   F8.0
333      norms_f Subjective Norms - Parents Like Mathematics (T1)   F8.0
334      norms_f Subjective Norms - Parents Like Mathematics (T1)   F8.0
356     repeated                                 Grade repetition   F8.0
357     repeated                                 Grade repetition   F8.0
    display_width labeled value               valLabel missings data_table
165            NA     yes     1 6 years old or younger    valid      noImp
166            NA     yes     2          7-9 years old    valid      noImp
167            NA     yes     3        10-12 years old    valid      noImp
168            NA     yes     4 13 years old  or older    valid      noImp
169            NA     yes     5                  Never    valid      noImp
331            NA     yes     1      Strongly disagree    valid      noImp
332            NA     yes     2               Disagree    valid      noImp
333            NA     yes     3                  Agree    valid      noImp
334            NA     yes     4         Strongly agree    valid      noImp
356            NA     yes     1 Did not repeat a grade    valid      noImp
357            NA     yes     2       Repeated a grade    valid      noImpMetadaten extrahieren
all_meta <- extractMeta(db_path)
unique(all_meta[grep("grade", all_meta$varLabel), c("varName", "varLabel")])      varName                                                 varLabel
196 grade_bio     School grade in biology (First school semester) (T1)
201 grade_che   School grade in chemistry (First school semester) (T1)
206  grade_de      School grade in German (First school semester) (T1)
211  grade_ma School grade in mathematics (First school semester) (T1)
216 grade_phy     School grade in physics (First school semester) (T1)
221 grade_sci     School grade in science (First school semester) (T1)GADSdat aus Datenbank ziehen
GADSdat aus Datenbank ziehen
List of 2
 $ dat   :'data.frame': 500 obs. of  3 variables:
  ..$ idstud   : num [1:500] 1 2 3 4 5 6 7 9 10 11 ...
  ..$ schtype  : num [1:500] 2 3 1 3 2 3 1 3 2 1 ...
  ..$ sameteach: num [1:500] 2 1 1 2 2 1 2 1 2 2 ...
 $ labels:'data.frame': 6 obs. of  8 variables:
  ..$ varName      : chr [1:6] "idstud" "sameteach" "sameteach" "schtype" ...
  ..$ varLabel     : chr [1:6] "Student-ID" "Same math teacher in both school years" "Same math teacher in both school years" "School track" ...
  ..$ format       : chr [1:6] "F8.0" "F8.0" "F8.0" "F8.0" ...
  ..$ display_width: num [1:6] NA NA NA NA NA NA
  ..$ labeled      : chr [1:6] "no" "yes" "yes" "yes" ...
  ..$ value        : num [1:6] NA 1 2 1 2 3
  ..$ valLabel     : chr [1:6] NA "No" "Yes" "Gymnasium (academic track)" ...
  ..$ missings     : chr [1:6] NA "valid" "valid" "valid" ...
 - attr(*, "class")= chr [1:2] "GADSdat" "list"Daten extrahieren
'data.frame':   500 obs. of  3 variables:
 $ idstud   : num  1 2 3 4 5 6 7 9 10 11 ...
  ..- attr(*, "label")= chr "Student-ID"
 $ schtype  : num  2 3 1 3 2 3 1 3 2 1 ...
  ..- attr(*, "label")= chr "School track"
 $ sameteach: chr  "Yes" "No" "No" "Yes" ...
  ..- attr(*, "label")= chr "Same math teacher in both school years"Kompetenz-Daten extrahieren (Long-Format)
pisa_gads2 <- getGADS(db_path, vSelect = c("schtype", "sameteach", nam$PVs))
pisa_dat2 <- extractData2(pisa_gads2, labels2character = c("sameteach", "dimension"))
str(pisa_dat2)'data.frame':   7500 obs. of  6 variables:
 $ idstud   : num  1 1 1 1 1 1 1 1 1 1 ...
  ..- attr(*, "label")= chr "Student-ID"
 $ schtype  : num  2 2 2 2 2 2 2 2 2 2 ...
  ..- attr(*, "label")= chr "School track"
 $ sameteach: chr  "Yes" "Yes" "Yes" "Yes" ...
  ..- attr(*, "label")= chr "Same math teacher in both school years"
 $ dimension: chr  "ma" "rea" "sci" "ma" ...
  ..- attr(*, "label")= chr "Achievement dimension (math, reading, science)"
 $ imp      : num  1 1 1 2 2 2 3 3 3 4 ...
  ..- attr(*, "label")= chr "Number of imputation of plausible values"
 $ value    : num  0.1537 0.4391 0.1318 -0.0412 0.0199 ...
  ..- attr(*, "label")= chr "Plausible Value"Tip
Für Datenbanken, die auf den Netzlaufkwerken liegen, getGADS_fast() und getTrendGADS(..., fast = TRUE) nutzen.
Tip
Für konkrete Analysen passende Daten aus der Datenbank ziehen.
don’t:
do
Tip
extractData2() nutzen um Anwendung von Wertelabels und Missingstags bewusst zu steuern.
don’t
do
extractData2() nutzen um das umzusetzen
Datenbanknutzung