Browsing by Author "Joshua, Joel Matiku"

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Introduction of the Cassava Processing Technology Adoption Scale (CPTA) as a Measurement Tool for Adoption of Improved Cassava Processing Technology
(TIA, 2020-06) Joshua, Joel Matiku; Massawe, Fatihiya Ally; Mwakalapuka, Amani Angumbwike
With existence of everyday innovated agricultural technologies, researchers’ curiosity on the adoption of farming technologies in general and on improved cassava processing technology in particular by farmers is increasingly. However, lack of effective instrument of measuring farmers’ adoption of the improved cassava processing technology in particular has been restricting researchers from successfully predicting and describing the potential of farmers’ adoption of technology. With such a restriction in mind, this paper intends to introduce Cassava Processing Technology Adoption scale (CPTA), as a valid and reliable instrument for measuring the adoption of improved cassava-processing technology. The tool was pilot - tested using across – section survey design conducted in Serengeti District in Mara region of Tanzania. The survey aimed at testing validity and reliability of the instrument among 200 participants purposively selected among cassava farmers, of these, 101 were males and 99 were females. The instrument measured three components of the adoption of improved cassava processing technology namely, involvement in the pre - processing tasks, involvement in the processing tasks, and utilization of the processed cassava products. The results indicate that the scale managed to categorize three implementation stages (sub - scale s) of adoption and reached reliability of α = .86. α = .71, and α = .79 for involvement in the pre - processing tasks, involvement in the processing tasks, and utilization of the processed cassava products respectively. The reliability for the total adoption scale was α = .93. There were low to moderate correlations among the three sub- scales indicating that they measured the same trait while at the same time they singly measured one implementation stage of the adoption of improved cassava processing technology.
The Role of Feedback on School Performance
(TIA, 2021-06) Joshua, Joel Matiku
This study aims at investigating the role of feedback on school performance. A total of 444 respondents including 217 males and 227 females were sampled from twelve secondary schools in Dodoma region in Tanzania. In the sample, 218 respondents were drawn from the group of high performing schools and 226 from the group of low performing schools in the regional ranking list of school performance in the Form Four National Examinations. The comparison between the two groups was made based on the extent to which the component of feedback was given in schools. Data were collected using questionnaire which assessed whether feedback was given in schools. The comparison also focused on completion of the planned topics, administering quizzes and tests, timely provision of performance feedback, correction of the performance feedback, re-writing of the exercises or tests after correction of performance feedback and re-marking of the re-written exercise or tests. Data were descriptively analysed to obtain frequencies and percentages for each group. The findings revealed that about 35.4 percent of students from the group of low performing schools reported a maximum of 57.14 percent of unfinished topics as opposed to 17.4 percent from their counterparts the high performing schools who reported the same proportion of unfinished topics. Therefore, it was concluded that failure to complete topics as per the syllabus and feedback provision are among the determinants of school performance. These findings have theoretical and practical implications for future research. The paper recommends that teachers should stick to their professional responsibilities and ensure completion of topics and timely provision of feedback to students.