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Experiments	2
Research Methodology	2
Research Problems	2
Behavioral Science Research	1
Child Language	1
Developmental Continuity	1
Educational Research	1
Inquiry	1
Language Acquisition	1
Naturalistic Observation	1
Opinion Papers	1
Preschool Children	1
Preschool Education	1
Validity	1
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Educational Psychology: An…	1
Educational Researcher	1

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Clark, Margaret M.	1
Lehrer, Richard	1

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Journal Articles	2
Opinion Papers	2
Information Analyses	1

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Knowledge or Certainty? A Reply to Cziko.

Peer reviewed

Lehrer, Richard; And Others – Educational Researcher, 1990

Criticizes an earlier essay that questioned the validity of contemporary educational research practices, especially those involving experimentation. Argues that research using experimentation is valid and can lead to new and generalizable knowledge. (FMW)

Descriptors: Behavioral Science Research, Educational Research, Experiments, Inquiry

Researches into Preschool Education: Issues and Evidence.

Peer reviewed

Clark, Margaret M. – Educational Psychology: An International Journal of Experimental Educational Psychology, 1989

Suggests that experimental studies are valuable in analyzing children's language development. Criticizes the scarcity of experimental and naturalistic investigation into preschool language development. Calls for long-term study of continuity and discontinuity in children's school and home learning and between different school stages. Observes that…

Descriptors: Child Language, Developmental Continuity, Experiments, Language Acquisition