W. M. Gray

发表

Formal operations, the imaginary audience and the personal fable.

L. Hudson, W. M. Gray, 1986, Adolescence.

Development of a Piagetian-Based Written Test: A Criterion-Referenced Approach.

William M. Gray, W. M. Gray, 1973 .

Twentieth Century Challenges and Milestones

W. M. Gray, 2013 .

Rasch Scaling of Different Forms of Thought and Different Logical Operations.

C. Fox, W. M. Gray, 1997 .

A Comparison of Piagetian Theory and Criterion-referenced Measurement

W. M. Gray, 1978 .

Formal Operations and the Imaginary Audience.

L. Hudson, W. M. Gray, 1984 .

The Structure of Operational Thought: A Replication and Extension.

W. M. Gray, 1985 .