J. Frass and I. Newman (2000) proposed a hypothesis testing procedure that incorporated the following three key elements: (1) the establishment of a practical significance value; (2) the construction of a non-nil null hypothesis that incorporated the practical significance value; and (3) statistical testing of the non-nil null hypothesis with a…

This paper analyzes three possible research designs using each of the four types of sums of squares in the Statistical Package for the Social Sciences (SPSS). When the design is balanced (i.e., each cell has the same number of observations), all of the SPSS types of sums of squares yield equivalent results (testable hypotheses and sums of squares)…

The tests discussed provide a relatively wide variety of inference techniques which may be applied to "koppa". Each of the techniques may be used to construct confidence intervals, and one specific equation provides a simultaneous test of zero values for two koppas when applied properly. (NE)

Comment on EJ 060 883, and J. Cohen, Statistical power analysis for the behavioral sciences,'' New York: Academic Press, 1969. (CB)

Contrary to total time hypotheses it was found that recall is a negatively accelerated function of total presentation time when total presentation time was increased by adding words or slowing the rate of presentation, rather than being a linear function of total presentation time. (AN)

Four different rationales for establishing a structural curriculum are discussed. (CK)