12 pages., Purpose
Pervasive use of poor quality seed remains an important reason for low yields throughout the developing world. We explore ways to increase the quality of the local stock of seed tubers among a sample of Ugandan potato farmers.
Design/methodology/approach: Using videos, we provide agricultural extension information on (i) how to select the best seed tubers and (ii) how to properly handle and store seed tubers until the next planting season. The relative effectiveness of the information interventions is tested using an individually randomized controlled trial where we model spillovers using a randomization-based framework for estimating causal effects under interference between units.
Findings: Especially the video on seed selection translated into increased awareness and adoption of recommended practices, increased probability of using improved inputs, as well as higher consumption.
Practical implications: Interventions aimed at improving seed quality are important in the absence of access to high-quality seed. Video messages are becoming increasingly useful as a complementary tool in agricultural extension.
Theoretical implications: Randomization-based inference can be used to take into account spillover effects in the analysis rather than the design phase of an experiment.
Originality/value: This is the first study to address seed quality of potato tubers in a real-world setting using videos.
Landini, Fernando (author), Beramendi, Maite (author), and University of La Cuenca del Plata
Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET)
School of Psychology, University of Buenos Aires
Format:
Online journal article
Publication Date:
2019-07-24
Published:
Argentina: Taylor and Francis
Location:
Agricultural Communications Documentation Center, Funk Library, University of Illinois Box: 101 Document Number: D10880
18 pages, online journal article, Purpose
This article aims at designing and validating a psychometric scale to assess extensionists’ and advisors’ beliefs about extension and innovation.
Design/Methodology/approach
The scale was developed by drawing upon results from a previous empirical research as well as insights from a literature review on extension and innovation approaches. The theoretical framework used to write the items was validated by 12 international experts from 11 countries. 608 Argentine extension workers completed the questionnaire. Replies were analysed using Exploratory and Confirmatory Factor Analysis.
Findings
The scale has a good fit and satisfactory level of internal consistency. Five factors were identified: Dialogue and horizontal coordination; Transfer of technology; Blame on farmers; Participatory, farmer-led extension; and Self-critical attitude.
Practical implications
The scale has multiple and different uses, including research, theory development, institutional practice, diagnosis, and teaching.
Theoretical implications
Results show that a horizontal, facilitative extension approach shares a common epistemology, as well as underlying values and assumptions, with territorial development and with an innovation systems perspective, and that both contrast with a traditional transfer of technology approach. Nonetheless, practitioners would not tend to see these two contrasting perspectives as contradictory but as complementary.
Originality/Value
The scale is the first validated psychometric instrument, based on an ample theoretical framework, that allows for a quantitative assessment of beliefs about extension and innovation.
