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This paper shows how to obtain an optimal inventory management
policy, subject to an investment constraint, when different items are
ordered from the same supplier. It is shown that the optimal policy for
this constrained problem may be obtained directly from the solution to
the equivalent unconstrained problem.

This study focused on the development and validation of psycho productive skill multiple choice test (PSMCT) for assessment of technical college students' achievement in mechanical engineering Craft. The study adopted the instrumentation research design and it was carried out in Nasarawa State. The population for study was 248 National Technical Certificate (NTC) III students comprising of three ability groups (42 high, 140 average and 66 low abilities). A 305 item draft copy of psycho productive skills multiple choice test items was generated and utilized as the instrument for the study. The test was used to assess students in the four Government Technical Colleges in Assakio, Mada Station, Agwada, and Doma in the study area. The data collected were analyzed using split-half technique and Kadder-Richardson (K-R20). The reliability coefficient of the test was 0.84. It was found out that there were significant differences in the mean scores of the three ability groups (high, average and low). It was recommended among others, that examination bodies (NABTEB, WAEC and NECO) should integrate the psycho productive skill multiple choice test in their examination process for certification of NTC students.

This study focused on the development and validation of psycho productive skill multiple choice test (PSMCT) for assessment of technical college students' achievement in mechanical engineering Craft. The study adopted the instrumentation research design and it was carried out in Nasarawa State. The population for study was 248 National Technical Certificate (NTC) III students comprising of three ability groups (42 high, 140 average and 66 low abilities). A 305 item draft copy of psycho productive skills multiple choice test items was generated and utilized as the instrument for the study. The test was used to assess students in the four Government Technical Colleges in Assakio, Mada Station, Agwada, and Doma in the study area. The data collected were analyzed using split-half technique and Kadder-Richardson (K-R20). The reliability coefficient of the test was 0.84. It was found out that there were significant differences in the mean scores of the three ability groups (high, average and low). It was recommended among others, that examination bodies (NABTEB, WAEC and NECO) should integrate the psycho productive skill multiple choice test in their examination process for certification of NTC students. Article visualizations:

This is a brief, technical review of the Anti-Submarine Warfare (ASW) part of ITEM, a widely used theater combat model. Several apparent deficiencies are pointed out. The recommendation is that ITEM's documentation be improved, and that a more extensive verification be carried out. ; Approved for public release; distribution is unlimited.

"Ordinal Item Response Theory is volume 169 in the SAGE Series "Quantitative Applications in the Social Sciences" (QASS). The of Ordinal Item Response Theory is referred to throughout many other QASS titles and fills a gap between the more classical topics of undimensional scaling, test theory, principal component and factor analysis. In addition, this volume also discusses parametric item response theory and latent class analysis. This monograph is less technical than many books on the market and is best suited for an introductory course in social science measurement"--

"January 1979." ; Shipping list no.: 89-493-P. ; Cover title. ; Mode of access: Internet. ; 14

This study determined enhancing effectiveness in teaching and learning technical drawing for sustainable development in Nigerian technical colleges. Two research questions focusing on status of Technical Drawing in Nigerian Technical Colleges and mechanisms for enhancing teaching and learning of Technical Drawing guided the study. The population of the study was all the 152 technical college administrators in state government owned technical colleges in South- Western States of Nigeria. A 30-item self-developed questionnaire was used to collect data from all the 152 respondents. The questionnaire was validated by three experts and its reliability coefficient was established at 0.92 using Cronbach's Alpha Coefficient method. The data collected were analyzed using descriptive statistics. The study found that traditional mode of classroom instruction dominated the teaching and learning of technical drawing and that procurement of ICT facilities and retraining of technical drawing teachers would enhance teaching and learning of the subject. The study recommended, among others that relevant stakeholders responsible for the administration of technical colleges should procure ICT facilities for teaching and learning of technical drawing.