Education Commons^™

Effects Of Parent Child Interaction And Language Stimulation On Children's Language Development, Rachel E. Timm, Helen Raikes

UCARE Research Products

Research Questions:

• Does parent positive regard relate to a child’s receptive language development?

• Does language stimulation relate to a child’s receptive language development?

• Does parent bookreading behavior (reading fluency, reading intonation/animation, comfort level, and child involvement) relate to a child’s receptive language development?

Measures:

• Preschool Language Scale-5 (PLS-5)
• Peabody Picture Vocabulary Test-4 (PPVT-4)
• HOME Language and Literacy Scale
• Video Codes from the NICHD Study of Early Child Care

Results:

• Positive regard was not significantly related to the PLS-5 or the PPVT-4.
• The HOME Language and Literacy Scale was a significant predictor of the PPVT-4 and was related to the PLS-5 …

The Effects Of Scaling On Trends Of Development: Classical Test Theory And Item Response Theory, Weldon Z. Smith

College of Education and Human Sciences: Dissertations, Theses, and Student Research

The scale metrics used in educational testing are often arbitrary, and this can impact interpretation of scores on measurements. Both classical test theory sum scores and item response theory estimates measure the same underlying dimension, but differences in the two scales may lead one to be more preferential than the other in interpreting data. Mismatch between individual ability and test difficulty can further result in difficulties in correctly interpreting trends of development in longitudinal data. A previous limited simulation by Embretson (2007) demonstrated that classical test theory sum scores result in misinterpretation of linear trends of development, and that item …