Understanding Society User Support: Issueshttps://iserredex.essex.ac.uk/support/https://iserredex.essex.ac.uk/support/support/favicon.ico?15995719382024-01-26T08:16:49ZUnderstanding Society User Support
Redmine Understanding Society User Support - Support #2041 (Resolved): w_outcome in COVID-19 survey waveshttps://iserredex.essex.ac.uk/support/issues/20412024-01-26T08:16:49ZLaura L
<p>In the cv_indresp dataset (COVID-19 survey), there are three variables (i_outcome, j_outcome, k_outcome) referring to three survey waves of the main survey. They are supposed to indicate the completion status of each of these main survey wave for each respondent. However, I cannot find I clear indication about the values coding. How should I interpret the different values of the w_outcome variables?</p> Understanding Society User Support - Support #1916 (Resolved): xwavedat vs xwaveidhttps://iserredex.essex.ac.uk/support/issues/19162023-06-07T15:21:51ZAlexey Bessudnov
<p>Hello,</p>
<p>What is the difference in the universe between the xwavedat file (150,393 rows) and xwaveid file (128,036 rows)?</p>
<p>Thank you,</p>
<p>Alexey</p> Understanding Society User Support - Support #1902 (Resolved): weights individual files waves 10 ...https://iserredex.essex.ac.uk/support/issues/19022023-05-15T13:20:37ZAelen Valen
<p>Hi,</p>
<p>I am trying to merge individual files across waves 10 and 11 into wide format to create a 2019 calendar year dataset.<br />I used this method from "Box 1: Example syntax for pooled analysis for cross-sectional estimation relating <br />to calendar year 2011, with weight re-scaling" in <a class="external" href="https://www.understandingsociety.ac.uk/sites/default/files/downloads/documentation/user-guides/mainstage/weighting_faqs.pdf">https://www.understandingsociety.ac.uk/sites/default/files/downloads/documentation/user-guides/mainstage/weighting_faqs.pdf</a></p>
<p>ge wts=0 <br />replace wts=indpxui_xw if month>=13 & month<=24 <br />ge ind=1 <br />sum ind [aw=indpxui_xw] if month>=1 & month<=12 <br />gen jwtdtot=r(sum_w) <br />sum ind [aw=indpxui_xw] if month>=1 & month<=12 <br />gen kwtdtot=r(sum_w) <br />replace wts=indpxui_xw*(jwtdtot/kwtdtot) if month>=1 & month<=12</p>
<p>For the purpose of the research I am working on, I am using the equivalised household income and other variables referring to parental occupation, education and place of birth.</p>
<p>Since I am using it together with EUSILC 2019 for different EU countries, I was comparing the weights with the weights in EUSILC. While the sum of the weights in the latter equals on average the 80% of the real population in each country, the sum of weights of the dataset I created for UK 2019 (with the merge of wave 10 and 11) gives a number way lower than the census 2019 UK population.</p>
<p>Could you please help me understanding how those weights are constructed, which characteristics of the population they consider, whether they can comparable to ones in EUSILC and whether the procedure I followed to merge the two waves is correct. <br />Many thanks in advance for the support!</p> Understanding Society User Support - Support #1896 (Resolved): why there are so many cases inappl...https://iserredex.essex.ac.uk/support/issues/18962023-04-23T08:31:08ZSijia Du
<p>Dear User Support Team,</p>
<p>I was wondering why there were so many cases inapplicable in terms of occupational class (current job) for example in the l_indresp file. Any guidance and suggestions would be greatly appreciated.</p>
<p>Best wishes,</p>
<p>Sijia Du</p>
<p><a class="email" href="mailto:sijia.du@manchester.ac.uk">sijia.du@manchester.ac.uk</a><br /><a class="email" href="mailto:sijia.du@nankai.edu.cn">sijia.du@nankai.edu.cn</a></p> Understanding Society User Support - Support #1744 (Resolved): weighthttps://iserredex.essex.ac.uk/support/issues/17442022-08-06T07:31:48Zhuihui song
<p>Hi,</p>
<p>I use the 1-8 wave child survey to study the children's health (longitudinal data), should I use the weight when running regression? If yes, what weight should I use? Because I don't know if there is a weight that covers 1-8 wave data.</p> Understanding Society User Support - Support #1650 (Feedback): yp2uni missing/inapplicable/don't ...https://iserredex.essex.ac.uk/support/issues/16502022-02-04T11:04:46ZAlessandro Ferrara
<p>I am working with the yp2uni variable from the youth questionnaire and I see some incongruence in the missing values.</p>
<p>In Wave 1, there is only the "missing (-9)" category and an "Inapplicable (-8) category. I am not sure what the "Inapplicable" refers to here, as it does not seem like the population to which the question is asked is somehow limited. Moreover, in the questionnaire there is a "I don't know" option, which is not shown in the final data. Might this correspond to the "Inapplicable"?</p>
<p>In Waves 2-5, 7, 10 and 11, there is no "Inapplicable" anymore and just a "Missing" category. Have the two been merged together?</p>
<p>In waves 6,8 and 9, there are categories for both "Inapplicable", "Missing" and "Don't know". This seems like the most comprehensive and correct coding of the data, although it is still unclear what "Inapplicable" refers to in this case.</p>
<p>This issue is quite important for my reserach because an "I don't know" is clearly very different from a missing or an inapplicable response. Moreover, understanding who the "Inapplicable" respondents are is useful to understand which population I am studying here.</p>
<p>Thank you for your help!</p> Understanding Society User Support - Support #1638 (Resolved): w_fimnlabnet_dvhttps://iserredex.essex.ac.uk/support/issues/16382022-01-24T16:54:30ZISHA GUPTA
<p>Hi,<br />Does this Labour income variable (w_fimnlabnet_dv) also capture the Statutory maternity pay (SMP) that the employers pay to their female employees who are on maternity leave?</p>
<p>Essentially women who are on maternity leave get their regular salaries for a few months- so is this counted as a labour income or this information is captured in some other variable in the survey data?</p> Understanding Society User Support - Support #1531 (Resolved): w_sf12mcs_dv - SF-12 Mental Compon...https://iserredex.essex.ac.uk/support/issues/15312021-04-07T16:50:32ZJennifer KnightsJLK288@student.bham.ac.uk
<p>Hi - <br />Could you advise on what SF-12 Mental Component Summary (PCS) is derived from? For b_scghq1_dv Subjective wellbeing (GHQ): Likert it is clearly stated this is derived from the General Health Questionnaire. <br />Thanks<br />Jennie</p> Understanding Society User Support - Support #1501 (Resolved): xtreg and fixed effectshttps://iserredex.essex.ac.uk/support/issues/15012021-02-04T18:16:38ZLeilah Plant-Tchenguiz
<p>Hi,</p>
<p>I have been trying to estimate a panel regression using xtreg, fe in Stata. My observations are at the level of individuals for multiple waves. Since svy is not supported, how can I run the fixed effects estimation taking account of sample design? I have included pweight, but don't know how to account for clustering and strata. Would I end the xtreg command with "vce(cluster psu)"? Or should I use "vce(cluster pidp)"? Or one source I read suggested creating a new variable consisting of unique combinations of psu and strata (call it uniquevar) and then using "vce(cluster uniquevar)". I don't really understand the econometrics behind this, so any help would be appreciated.</p> Understanding Society User Support - Support #1347 (Resolved): weightinghttps://iserredex.essex.ac.uk/support/issues/13472020-05-14T17:22:52ZLaura Silva
<p>1)I am using the waves a-f using info from the youth and the adults questionnaire in each wave. Which weight is the most adequate to use?</p> Understanding Society User Support - Support #1337 (Resolved): w_jbnssec3_dv have more than 3 cat...https://iserredex.essex.ac.uk/support/issues/13372020-04-28T14:49:50ZLouise Luo
<p>Dear Officer,</p>
<p>The variable w_jbnssec3_dv has only three categories in the last release reversion (2018). However, it contains non-lable categories, such as 7, 8, 9 and 10 in the latest release. Do you know why it is changed?</p>
<p>Thanks,</p>
<p>Louise</p> Understanding Society User Support - Support #1323 (Resolved): youth self completion longitudinal...https://iserredex.essex.ac.uk/support/issues/13232020-03-18T13:37:54ZLinda Ng
<p>Hi US Support,</p>
<p>I have a question about the youth self-completion weight.</p>
<p>My analytical sample comprises of youths and young adults (aged 12-19) who filled in the Self-completion booklet (SC), using data from wave 3 and wave 6 involving the following combinations</p>
<p>A: Wave 3: Youth Sc -> Wave 6: Youth Sc<br />B: Wave 3:Youth Sc -> Wave 6: Young Adult SC<br />C: Wave 3:Young Adults SC -> Wave 6: Young Adult Sc</p>
<p>For C, I can use the young adult SC longitudinal weight f_indscub_lw<br />However, I cannot find a longitudinal weight for youth SC, (Group A), why is that?<br />Also, what should I do about weighting for youths SC who became young adults in Wave 6 (Group B)?</p>
<p>Thank you in advance.</p>
<p>Kind regards,<br />Linda</p> Understanding Society User Support - Support #1150 (Resolved): ypwght (samping (weight)?) appears...https://iserredex.essex.ac.uk/support/issues/11502019-02-22T13:11:03ZGeorgios Chrysanthou
<p>ypwght appears as a physical characteristic on:<br /><a class="external" href="https://www.understandingsociety.ac.uk/documentation/mainstage/dataset-documentation/index/physical-characteristics">https://www.understandingsociety.ac.uk/documentation/mainstage/dataset-documentation/index/physical-characteristics</a></p>
<p>ypwght young person weight youth<br />But, unless I am mistaken it is a samping (weight) factor and has nothing to do with young person weight in e.g. lbs/kgs.<br /><a class="external" href="https://www.iser.essex.ac.uk/bhps/documentation/volb/indexes/subjcat17.html#Sampling%20Factors">https://www.iser.essex.ac.uk/bhps/documentation/volb/indexes/subjcat17.html#Sampling%20Factors</a></p>
<p>e.g. Volume A: Introduction, Technical Report and Appendices – The BHPS Data</p>
<p>A3-42: states</p>
<p>"This record type contains the responses to the Young persons questionnaire, asked of children aged 11 to 15 on 1st December 1994. There will be one record for each respondent young person. Such respondents have the value 21 for the final interview outcome variable DIVFIO. The variable DYPWGHT contains an individual cross-sectional weight to be used specifically with the youth responses."</p>
<p>So I think (?) that ypwght should not be appearing as a physical characteristic variable on</p>
<p><a class="external" href="https://www.understandingsociety.ac.uk/documentation/mainstage/dataset-documentation/index/physical-characteristics">https://www.understandingsociety.ac.uk/documentation/mainstage/dataset-documentation/index/physical-characteristics</a>.</p> Understanding Society User Support - Support #1100 (Resolved): weights and 'svy set' using wave 2...https://iserredex.essex.ac.uk/support/issues/11002018-11-26T10:33:04ZPer-Ola Sundinperola.sundin@regionorebrolan.se
<p>I am evalutaing associations between kidney function (serum creatinine) determined in blood samples at the wave 2/3 nurse health assesment and all cause mortality up to wave 7. I also use self reported diagnoses from the main stage interview wave 2/3 for adjustment in the models.</p>
<p>I have found what I believe is the correct weight to use (indbdub_xw from xlabblood_ns.dta).</p>
<p>I do not use data from the following waves although I use the flag for diseased individuals provided (which is based on information from the following waves).</p>
<p>Besides being ceratin that I use the most appropiate weights I am also a bit confused about which variables that I should use when I 'svy set' my data. In xlabblood_ns.dta were I find the weight variable I do not find any 'psu' or 'strata' variables.</p>
<p>Yours sincerely<br />Per-Ola Sundin PhD-student</p> Understanding Society User Support - Support #919 (Resolved): weights for pooled cross-sections o...https://iserredex.essex.ac.uk/support/issues/9192018-02-14T11:15:55ZNico Ochmannnico.ochmann@postgrad.manchester.ac.uk
<p>Dear Peter, <br />I have a quick follow-up question with regard to my past issue <a class="issue tracker-3 status-5 priority-4 priority-default closed" title="Support: Pooling data from all waves, 1-6, using all subsamples of USoc (GPS, EMBS, BHPS, IEMB) (Closed)" href="https://iserredex.essex.ac.uk/support/issues/839">#839</a>. You wrote the following below:<br />A simpler approach would be to select based on current wave GOR. This will not remove the sample imbalance problem, but should reduce it to a minimum, so may be good enough.<br />For me to implement this simpler approach and to minimize the sample imbalance, you suggest to drop Scot, Wales, NI for the current wave g only? Or do you mean to drop all Scot, Wales, NI for all seven waves? <br />I would appreciate a short reply and sorry about the very delayed follow-up question. <br />Best. <br />Nico</p>