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  2. Denver Developmental Screening Tests - Wikipedia

    en.wikipedia.org/wiki/Denver_Developmental...

    The Denver Developmental Screening Test (DDST) was introduced in 1967 to identify young children, up to age six, with developmental problems. A revised version, Denver II, was released in 1992 to provide needed improvements. These screening tests provide information about a range of ages during which normally developing children acquire certain ...

  3. History of Solar System formation and evolution hypotheses

    en.wikipedia.org/wiki/History_of_Solar_System...

    The history of scientific thought about the formation and evolution of the Solar System began with the Copernican Revolution. The first recorded use of the term "Solar System" dates from 1704. [1][2] Since the seventeenth century, philosophers and scientists have been forming hypotheses concerning the origins of our Solar System and the Moon ...

  4. History of the United States (1917–1945) - Wikipedia

    en.wikipedia.org/wiki/History_of_the_United...

    The history of the United States from 1917 to 1945 was marked by World War I, the interwar period, the Great Depression, and World War II. The United States tried and failed to broker a peace settlement for World War I, then entered the war after Germany launched a submarine campaign against U.S. merchant ships that were supplying Germany's ...

  5. Cloze test - Wikipedia

    en.wikipedia.org/wiki/Cloze_test

    A cloze test (also cloze deletion test or occlusion test) is an exercise, test, or assessment in which a portion of text is masked and the participant is asked to fill in the masked portion of text. Cloze tests require the ability to understand the context and vocabulary in order to identify the correct language or part of speech that belongs ...

  6. Quizlet - Wikipedia

    en.wikipedia.org/wiki/Quizlet

    Quizlet is a multi-national American company that provides tools for studying and learning. [1] Quizlet was founded in October 2005 by Andrew Sutherland, who at the time was a 15-year old student, [2] and released to the public in January 2007. [3] Quizlet's primary products include digital flash cards, matching games, practice electronic ...

  7. Evolution of sexual reproduction - Wikipedia

    en.wikipedia.org/wiki/Evolution_of_sexual...

    In the eukaryotic fossil record, sexual reproduction first appeared about 2.0 billion years ago in the Proterozoic Eon, [63] [64] although a later date, 1.2 billion years ago, has also been presented. [65] [66] Nonetheless, all sexually reproducing eukaryotic organisms likely derive from a single-celled common ancestor.

  8. Sentence completion tests - Wikipedia

    en.wikipedia.org/wiki/Sentence_completion_tests

    Sentence completion tests are a class of semi-structured projective techniques. Sentence completion tests typically provide respondents with beginnings of sentences, referred to as "stems", and respondents then complete the sentences in ways that are meaningful to them. The responses are believed to provide indications of attitudes, beliefs ...

  9. Amaris Encinas, USA TODAY. September 11, 2024 at 7:58 PM. One of only eight surviving ratified copies of the U.S. Constitution discovered in an old filing cabinet in North Carolina soon will be ...