The Avon Longitudinal Study of Parents and Children (ALSPAC) assessed their cohort members (CMs) at 18 months’ age (Children in Focus Clinic) using the Griffiths Scales of Mental Development (GSMD) Hearing and Speech Scale.
Details on this measure and the data collected from the CMs are outlined in the table below.
|Domain:||Hearing and speech ability|
|Measures:||General verbal information|
|Oral production and fluency|
|CHC:||Gc (Crystallized Intelligence)|
|Administration method:||Trained interviewer; clinical setting; guided play session|
|Procedure:||During a guided play session, several tasks were administered by the interviewer, and the interviewer recorded whether the child could complete each task, e.g. whether the child could turn the pages of the picture book, whether they knew their own name, whether they used clear words, whether they could identify objects in a box of toys, whether they could name the contents of various pictures.|
|Link to questionnaire:||http://www.bristol.ac.uk/alspac/researchers/our-data/clinical-measures/|
|Scoring:||Standardised DQ (0 - 100)|
|Item-level variable(s):||Not readily available|
|Total score/derived variable(s):||cf774, cf780|
|Descriptives:||Unadjusted score||Age adjusted score|
|N = 1,174||N = 1,168|
|Range = 0 - 36||Range = 62.82 - 132.62|
|Mean = 18.20||Mean = 99.84|
|SD = 4.13||SD = 16.11|
|(click image to enlarge)||(click image to enlarge)
|Age of participants:||Mean = 79.90 weeks, SD = 1.47, Range = 76 - 87|
|Other sweep and/or cohort:||None|
|Source:||Griffiths, R. (1970). The abilities of young children. London: Child Development Research Centre.|
|Technical resources:||Griffiths, R. (1970). The abilities of young children. London: Child Development Research Centre.|
|Reference examples:||Hibbeln, J. R., Davis, J. M., Steer, C., Emmett, P., Rogers, I., Williams, C., & Golding, J. (2007). Maternal seafood consumption in pregnancy and neurodevelopmental outcomes in childhood (ALSPAC study): an observational cohort study. The Lancet, 369(9561), 578-585.|
|Pearson, R. M., Heron, J., Melotti, R., Joinson, C., Stein, A., Ramchandani, P. G., & Evans, J. (2011). The association between observed non-verbal maternal responses at 12 months and later infant development at 18 months and IQ at 4 years: A longitudinal study. Infant Behavior and Development, 34(4), 525-533.|
For the named items in the table above, links are provided (where applicable) to their corresponding content on CLOSER Discovery.
- Overview of all cognitive measures in ALSPAC
- Overview of childhood cognitive measures across all studies
This page is part of CLOSER’s ‘A guide to the cognitive measures in five British birth cohort studies’.