MCS - 9 months - Developmental Milestones
The Millennium Cohort Study (MCS) assessed their cohort members (CMs) during the study’s sweep at 9 months age using the Developmental Milestones measures.
Details on these measures and the data collected from the CMs are outlined in the table below.
| Year of data collection: | 2001 |
| Domain: | Fine and gross motor coordination |
| Receptive and productive vocabulary | |
| Measures: | Developmental milestones using questions from two developmental questionnaires: |
| 8 questions from Denver Developmental Screening Test (DDST) which assesses social and communication skills and fine and gross motor coordination | |
| 5 items were chosen from a UK adaptation of MacArthur Communicative Development Inventories (CDI) identifies early communicative gestures | |
| CHC: | N/A |
| CLOSER Source: | Not currently available in CLOSER Discovery |
| Administrative method: | Parent report; face to face computer-assisted personal interview (CAPI) |
| Procedure: | Parents were asked to respond to selected statements from the tests, using a three-point scale: “Often” or “Once or twice”, “Not yet” (for the Denver Developmental Screening Test), “Often”, “Sometimes”, “Not yet” (for the MacArthur CDI). DDST question topics (gross motor coordination): sitting up without support, standing while holding on to something, walking a few steps unaided, moving about on the floor. DDST question topics (fine motor coordination): putting hands together, grabbing objects using the whole hand, picking up small objects with forefinger and thumb only, passing a toy between their hands. CDI question topics: smiling when smiled at, reaching to give an object they are holding, waving when someone leaves, extending arms to show they want to be picked up, nodding head for ‘yes’. |
| Link to questionnaire: | https://cls.ucl.ac.uk/wp-content/uploads/2017/07/MCS1_CAPI_Questionnaire_Documentation_March_2006_v1.1.pdf (opens in new tab) |
| Scoring: | None available |
| Item-level variable(s): | acsitu00 acstan00 acwalk00 acmove00 (DDST – gross) |
| achand00 acgrab00 acpick00 acptoy00 (DDST – fine) | |
| acsmil00 acgive00 acwave00 acarms00 acnods00 (CDI) | |
| Total score/derived variable(s): | None |
| Age of participant (days): | Mean = 295.5, SD 15.25, Range = 243-382 |
| Descriptives: | None available |
| Other sweep and/or cohort: | None |
| Source: | Frankenburg, W. K., & Dodds, J. B. (1967). The Denver developmental screening test. The Journal of Pediatrics, 71(2), 181-191. |
| Fenson L., Dale P., Resnick J., Thal D., Bates E., Hartung J. P. et al. (1993). MacArthur Communicative Inventories. Singular Publishing Group, San Diego. | |
| Technical resources: | Johnson, J., Atkinson, M., & Rosenberg, R. (2015). Millennium Cohort Study: Psychological, Developmental and Health Inventories). Centre for Longitudinal Studies, London. https://cls.ucl.ac.uk/wp-content/uploads/2018/08/Guide-to-Psychological-Inventories-in-MCS3.pdf |
| Reference examples: | Sacker, A., Quigley, M. A., & Kelly, Y. J. (2006). Breastfeeding and developmental delay: findings from the millennium cohort study. Pediatrics, 118(3), e682-e689. |