A laboratory analogue of naturalistic observation was used to examine the relationship of observer drift to instructional set and experimenter status. Results indicated a highly significant decrease in observer reliability coinciding with the shift from training to data collection. (ST)

Study is part of an ongoing research program whose cumulatime aim is to generate empirically validated hierarchical curriculum sequences in several basic skill areas appropriate to an early learning curriculum. (Author)

Suggests ways to use dynamic systems analysis to illuminate the pluralistic and multidimensional model described by Larivee, Normandeau, and Parent (2000). Issues discussed include the characteristics of developmental transitions, such as hysteresis; nature of growth processes, such as hierarchical development or predator-prey interactions; and…

Purpose of this study was to examine the nature of correlations among tasks purporting to measure communicative, cognitive, role-taking, and spatial egocentrism in childhood. (Author/CB)

An experiment was conducted comparing the effectiveness for producing response inhibition of high- and low-intensity physical punishment and elaborated verbal punishment when punishment was delivered either early or late in a response sequence. (Author)