The CANDECOMP/PARAFAC (CP) model decomposes a three-way array into a prespecified number of R factors and a residual array by minimizing the sum of squares of the latter. It is well known that an optimal solution for CP need not exist. We show that if an optimal CP solution does not exist, then any sequence …

If the ratio m/p tends to zero, where m is the number of factors m and p the number of observable variables, then the inverse diagonal element of the inverted observable covariance matrix (σ pjj) -1 tends to the corresponding unique variance ψ jj for almost all of these (Guttman, 1956). If the smallest …

In Multiple Choice tests several alternative answers are given for each question. The candidate must pick one of these alternatives as the correct answer. This type of test can be scored rapidly and objectively. However, a major disadvantage is that there is no way of telling what grounds the candidate …

People with voice problems can seek advice and therapy from a speech-language pathologist. Besides having problems with the speaking voice, a number of them are also amateur choristers. In addition to her standard examination, the speech-language pathologist has to specifically describe the use of the …