Biography

Dr. Nadia Nosworthy is an Associate Professor in the School of Graduate Psychology & Counseling, teaching courses in the areas of cognitive psychology, biological psychology, human development and special education.  Dr. Nosworthy spent a few years as an elementary school teacher before pursuing her graduate studies at the University of Western Ontario. 

Current Research or Professional Activities

Dr. Nosworthy’s present research focuses on basic numerical processing skills in children.  She is the co-creator of the Numerary Sreener which is a classroom assessment tool used to measure these foundational abilities. This assessment tool has been tested in Canada as well as in Cambodia, India and Kenya through collaborations with the Global Partnership for Education of the World Bank and the African Health and Population Research Center.  Her goal is to examine the relationship between basic numerical processing skills in the primary grades and individual differences in mathematical competence as well as the theoretical and educational implications of this relationship across cultures.

Publications

Bugden, S., Peters, L., Nosworthy, N., Archibald, L., & Ansari, D. (2020). Identifying children with persistent developmental dyscalculia from a 2-minute test of symbolic and non-symbolic numerical magnitude processing. Mind, Brain and Education, 15(1), 88-102.

Lafay, A., Osana, H., Michaud, S., & Nosworthy, N. (2020). Dépistage des difficultés mathématiques: validation et normalisation franco-québécoise du Tempo Test Rekenen et du Numeracy Screener version française [Identification of mathematical difficulties: validation and French-Quebec normalization of the Tempo Test Rekenen and the Numeracy Screener French Version]. Glossa, 127, 32-57.

Hawes, Z., Nosworthy, N., Archibald, L., & Ansari, D. (2019). Kindergarten children’s symbolic number comparison skills predict 1st grade mathematics achievement: Evidence from a two-minute paper-and-pencil test. Learning and Instruction, 59, 21-33.

Lafay, A., Archambault, S., Vigneron, M., & Nosworthy, N. (2018).  Version française du test Numeracy Screener (NS-f), un outil de dépistage des difficulties de traitement du nombres et des quantités [French version of the Numeracy Screener test (NS-f), a screening tool of difficulties in number and numerosities processing]. Glossa, 123, 18-32.

Nosworthy, N., Bugden, S., Archibald, L., Evans, B., & Ansari, D. (2013). A two-minute paper and pencil test of symbolic and nonsymbolic numerical magnitude processing explains variability in primary school children’s arithmetic competence. PLoS ONE. 8(7): e67918. doi:10.1371/journal.pone.0067918.