Centre for Time Use Research - information gateway
Centre for Time Use Research - information gateway
| ACT1 to ACTn | New aggregated activity variables to sit alongside the AV1 to AV40 variables | The ACT1 to ACTn variables will separately code primary activity only and joint activity codes |
| Activity codes | Codes of activities for sequence data | Same codes will be used for primary and secondary activities |
| BENINCLM | Total individual income from benefits last month | Figure in currency of study – 0 means no reported benefit income, other cases missing |
| CARER | Does diarist provide care to an adult with a disability or an elderly person |
0 = no
1 = yes (carer) |
| HINCBEN | Total household income from benefits or other public assistance last month | Figure in currency of study – 0 means no reported benefit income, other cases missing |
| HINCEMP | Total household income from employment and self-employment last month | Figure in currency of study – 0 means no reported employment income, other cases missing |
| HINCTOT | Total household income last month | Figure in currency of study |
| INCOME5 | Total household income quintiles |
1 = bottom 20%
2 = middle 60% 3 = top 20% |
| JTRAIN | Receiving job-related training |
0 = no
1 = yes (in training) |
| MIGRANT | Born outside the country |
0 = no
1 = yes (born in another country) |
| SELFEMP | Is diarist self-employed |
0 = no
1 = yes (self-employed) |
| WORKHRS | Same variable relabelled to harmonised hours of work last week | |
| WRKHLST | Hours of paid work last week | Number (0 means reported no hours) or missing |
| WRKHNRM | Normal weekly hours of paid work | Number (0 means reported no hours) or missing |
| WRKHTHS | Hours of paid work during the diary week | Number (0 means reported no hours) or missing |
| PPP | Purchasing power parity conversion factor for income variables in national currency | |
| REL1 to RELn | For studies where more than one member of the household completed a diary, relationship variables showing the relationship of each diarist in the household to other diarists in the household. | |
| RUSHED | A time pressure / sense of being rushed variable | |
| Customised documentation | Users will be able to print off documentation which only relates to a subset of data from selected countries, years or studies. |
| Elimination of bad diaries (presently diaries with more than 1 hour missing time removed from the harmonised file) |
Keep diaries with less than 91 missing minutes after imputation (rationale - users can always
reduce the diary set to a more stringent criteria if they desire. W6 will include sequence data, and some
analysis will cover periods of the day, not the whole day. Some diaries which might be bad diaries from
the whole day perspective (missing 1.5 hours) may be acceptable diaries from the perspective of a
particular time slot - so we can be less strict for W6 on this criteria). After imputation remove
diaries which contain no recorded time for 2 or more of the following activities if the diarist
does not have a serious health problem and does not record ill in bed time in the diary, and
diaries which lack all 4 of these activities for diarists with a serious health problem or who
record ill in bed time.
a - recorded time in sleep or rest b - recorded time eating or drinking c - recorded personal care time d - recorded travel time after imputation, compute lowact=0. Set lowact=1 for diaries with <10 for most diary types, and <6 for some light diaries, limited pre-coded list diaries, and some low activity count older diary studies. For all diaries coded 1, change the code to 0 if the diary contains at least 3 activities, and these activities include travel or ill in bed. Remove remaining lowact=1 diaries. |
| Imputation of missing time slots |
Impute missing sleep to imputed sleep. Impute missing time slots of 5 to 30 minutes to imputed time codes. Impute a portion of missing time slots of 31 to 60 minutes to imputed codes imputed codes will be flagged to enable users to treat imputed codes as missing. When respondents make a record of continuous activity that clearly has an activity missing - such as the respondent records doing activities at home and then doing activities at the workplace without recording an episode of travel, we will not over-write the respondent's records. Imputation to imputation codes will only take place when there is short gap of time with no reported activity and other information in the diary or the activities on either side of this gap impose constraints that allow an approximation of what took place in the unrecorded period. |
| Weighting | The documentation will explain how to create the weights available in an earlier version of the MTUS that created the same number of cases per survey. |
Improved documentation, new versions of the World 5.5 and World 6.0 files, additional background variables for all countries (as requested by users from a consultation held in November 2005), and new data sets if possible.
