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Direct linkMcKeown, Jessica M. – ProQuest LLC, 2018
Achieving scientific literacy is an essential outcome of science education and is comprised of knowledge of scientific content, the process of scientific inquiry, and understanding the Nature of Science (NOS; National Research Council, 1996). NOS refers to the characteristics of scientific knowledge that are derived from the results of the process…
Descriptors: Scientific Principles, Retention (Psychology), Comprehension, Elementary School Students
Margaret Ya-Ching Yeh – ProQuest LLC, 2015
This dissertation examined the role of maternal input in word order acquisition of Mandarin-speaking children from the one-word to multi-word stages. Four questions about the role of maternal input were addressed: frequency effects, age-related changes, utterance type effects, and verb diversity effects. Predictions for each question were made…
Descriptors: Mothers, Linguistic Input, Word Order, Language Acquisition
Shiu, William – ProQuest LLC, 2012
This study examined the Flynn Effect (FE; i.e., the rise in IQ scores over time) in Estonia from Scale B of the National Intelligence Test using both classical test theory (CTT) and item response theory (IRT) methods. Secondary data from two cohorts (1934, n = 890 and 2006, n = 913) of students were analyzed, using both classical test theory (CTT)…
Descriptors: Foreign Countries, Intelligence Tests, Intelligence Quotient, Change
Backlund, Erik A. – ProQuest LLC, 2009
The purpose of this dissertation is to examine long term changes in the overnight backcountry hiker population at Grand Canyon National Park (GCNP) between 1984 and 2004. Longitudinal studies of visitor behavior in wildland recreation settings have been relatively rare but offer great potential for the improvement of management, clarification of…
Descriptors: Parks, Physical Activities, Recreational Activities, Change
