Data Issues

Waves 1 to 7
Data issues - Waves 1 to 7 – February 2019

20 Who is mother/father issue

Since Wave 4, the study child has completed their own computer-assisted interview on a separate notebook from their parents. They have been asked questions about their relationships with their parents and their opinions on parents' work.

At the start of the relevant module, interviewers enter information about the family to determine who the study child will report on in relation to their mum/dad, taking into account the fact that parents could be living elsewhere, deceased or multiple people of the same sex may be playing a parental role.

Where a study child has their biological/adopted mother and father in the home, the words 'your mum/your dad' are used for word substitutions in follow-up questions. However, if the biological/adopted mother and father is living elsewhere or deceased/never sees, the study child is asked to enter the name of the person that the follow-up questions will relate to. In initial data releases, users were not made aware of which person was listed in these follow-up questions.

In addition, there were some minor instrument issues in Wave 6 and Wave 7. In Wave 6 the explicit interviewer question as to whether the study child chose their 'mum/dad living elsewhere' was not asked at all (question wasn't included in Wave 5). In Wave 7 sequencing issues meant that the SCCASI MumSkip question was not asked at all, which means that the majority of records have no specific answers as to who the study child is referring to in regards to 'Mum' data.

Table 35 provides a summary of the introduction questions to the relevant module for each cohort.

Table 35: Biological/adopted mother/father in the home according to ACASI/CSR introduction questions for each cohort
  Wave 5 Wave 6 Wave 7
Mother Father Mother Father Mother Father
B cohort
Yes, in this home 3,963 3,340 3,542 2,913 3,144 2,559
No, living elsewhere (PLE)
More than one person could be a mum/dad = Yes (a) 7 135 17 143 16 142
More than one person could be a mum/dad = No 38 488 48 506 38 451
Total 45 623 65 649 54 593
No, deceased or never sees
Is there a mum/dad in the home = Yes (b) 3 8 6 13 8 12
Is there a mum/dad in the home = No 5 45 3 41 7 49
Total 8 53 9 54 15 61
Total 4,016 4,016 3,616 3,616 3,213 3,213
Total needing follow-up question about name (a + b) 10 143 23 156 24 154
K cohort
Yes, in this home 3,731 3,056 3,224 2,627 2,804 2,269
No, living elsewhere (PLE)
More than one person could be a mum/dad = Yes (a) 22 191 16 167 NA* NA*
More than one person could be a mum/dad = No 79 520 83 459 NA* NA*
Total 101 711 99 626 91 563
No, deceased or never sees
Is there a mum/dad in the home = Yes (b) 7 11 8 15 2 10
Is there a mum/dad in the home = No 14 75 18 81 18 73
Total 21 86 26 96 20 83
Total 3,853 3,853 3,349 3,349 2,915 2,915
Total needing follow-up question about name (a + b) 29 202 24 182 2** 10**

Notes: NA* - These values are unavailable due to question not being asked for Wave 7. ** These values have been affected due to the unavailability of the values at Row 3 and 4 of the K cohort in the table.

Tables 36 and 37 provide the results of the follow-up matching process undertaken on the names entered by the study child in the introduction questions for each cohort.

Table 36: Results for matched names entered by the study child in the introduction questions for B cohort
B cohort Wave 5 Wave 6 Wave 7
Mother Father Mother Father Mother Father
Matched
Current wave PLE 3 79 2 79 3 86
Current wave P2 2 42 8 50 6 48
Current wave P1 3 0 5 0 9 0
Other HH member 0 4 1 4 0 0
Total 8 125 16 133 18 134
Not matched
No match to names on HHF 1 2 0 1 3 3
Not specific 1 9 1 9 3 8
Nothing entered 0 7 6 13 0 9
Total 2 18 7 23 6 20
Total 10 143 23 156 24 154
Table 37: Results for matched names entered by the study child in the introduction questions for K cohort
K cohort Wave 5 Wave 6 Wave 7
Mother Father Mother Father Mother Father
Matched
Current wave PLE 10 101 6 68 0 0
Current wave P2 4 58 6 57 1 10
Current wave P1 7 1 3 1 0 0
Other HH member 1 5 0 5 0 0
Total 22 165 15 131 1 10
Not matched
No match to names on HHF 0 7 1 3 0 0
Not specific 2 15 2 15 1 0
Nothing entered 5 15 6 33 0 0
Total 7 37 9 51 1 0
Total 29 202 24 182 2 10

Note: *These numbers are a large undercount due to instrument issues in Wave 7 as outlined earlier.

The datasets have been amended to either include a new item or update an existing item. Table 38 shows which values have been given in each case.

Table 38: Values that have been given in each case
  fd23d1/fd23d1* (Study child chose their mum/dad living elsewhere) fd23e1/fd23e1* (Who study child chose to respond about for mother/father)
Matched
Current wave PLE Yes Current wave PLE
Current wave P2 No Current wave P2
Current wave P1 No Current wave P1
Other HH member No Other/unknown
Not matched
No match to names on HHF Don't Know Other/unknown
Not specific Don't Know Other/unknown
Nothing entered Don't Know Other/unknown

Note: *Wave identifier not included, either e/f/g/h.