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Language Strategies for English Language Learners in Science.

Language Strategies for English Language Learners in Science. By Melinda Moya. Table of Contents. Research Design Threats to Internal Validity Threats to External Validity Pre-Test and Post-Test for Experimental Group Pre-Test and Post-Test for Control Group Data Analysis Survey

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Language Strategies for English Language Learners in Science.

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  1. Language Strategies for English Language Learners in Science. By Melinda Moya

  2. Table of Contents • Research Design • Threats to Internal Validity • Threats to External Validity • Pre-Test and Post-Test for Experimental Group • Pre-Test and Post-Test for Control Group • Data Analysis • Survey • Reference

  3. Research Design • Quasi-Experimental Design: Nonequivalent Control Group Design • Two groups of ELL students. The first group is the experimental group X1 • The second group is the control group X2. Here the treatment will be classroom instruction. Both groups will receive a Pre-test and a Post-test O. • Symbolic Design: • O X1 O • O X2 O

  4. Threats to Internal Validity • History: Any past experiences or cultural background can affect participation or involvement. • Maturation: Students individual attitude and experience towards Science, language skills, and computer usage may lead to loss of interest or participation. • Testing sensitization: Students may not take Pre-testing or post-testing seriously.

  5. Threats to external validity • Pretest-treatment: Pre-test scores may affect feelings towards post-test. • Hawthorne effect: Students may have the feeling of “being watched” and they perform according to the way they think researcher wants to find. • Experimental effects: Teachers may feel they need to teach for the test during this time of year.

  6. Pre-test and Post-Test for Experimental Group Average Pre-test: 58.07

  7. Post-Test and Post Test for Control Group

  8. Data Analysis

  9. Survey

  10. Reference • O’Connor-Petruso, S. (2012). Descriptive Statistics. Descriptivestatisticsthreatsvaliditysocp2012.pptx

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