Person
Griffiths, Ruth, 1895-1973.
Catalogue
- Books
The abilities of babies : a study in mental measurement / [Ruth Griffiths].
Griffiths, Ruth, 1895-1973.Date: [1954]- Books
A study of imagination in early childhood and its function in mental development / by Ruth Griffiths. Preface by J.C. Flugel.
Griffiths, Ruth, 1895-1973.Date: 1935- Books
Studies on a child population. I, Definition of the sample, method of ascertainment, and analysis of the results of a group intelligence test / by J.A. Fraser Roberts, R.M. Norman and Ruth Griffiths.
Roberts, J. A. Fraser (John Alexander Fraser), 1899-1987.Date: 1935