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ArtikelScale Invariance From A Three - Dimensional Graphical Perspective : Visualizing An Eigenvector  
Oleh: Ludlow, Larry H.
Jenis: Article from Journal - ilmiah internasional
Dalam koleksi: Educational and Psychological Measurement vol. 58 no. 2 (1998), page 166-178.
Topik: graphical user interface; educators; elementary schools; mathematics; attitude surveys
Fulltext: 166.pdf (879.73KB)
Ketersediaan
  • Perpustakaan Pusat (Semanggi)
    • Nomor Panggil: EE30.2
    • Non-tandon: 1 (dapat dipinjam: 0)
    • Tandon: tidak ada
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Isi artikelThis article reports on one aspect of a multifaceted inquiry into the attitudes and anxieties prospective elementary school teachers may have toward teaching mathematics. At the beginning, mid term and end of one semester, student teachers were asked to respond to an attitudes towards mathematics and its teaching (ATMAT) scale. The rasch model of item - response on theory was employed to estimate the difficulty level of the ATMAT items at the three different time periods. This article addressed the invariant characteristics of the scale. In addition to standard approaches taken to determine the extent to which the sale remained invariant over time, various three - dimensional graphical analyses were undertaken. These later analyses portrayed scale invariance in ways not possible through static numerical summaries. One noteworthy consequence, in particular, highlights the pedagogical significance of these analyses : the graphical representation of an eigenvector.
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