Step 1: Understanding the Concept:
The Borich Needs Assessment Model is a survey methodology designed to identify and prioritize professional training needs for extension agents, educators, and agricultural workers.
Step 2: Detailed Explanation:
The Borich model uses a double-scaling questionnaire to evaluate a list of professional competencies.
For each competency, respondents rate two elements:
1. Perceived level of importance (D) of the competency to their job.
2. Perceived level of competence (B) (their actual current ability in that skill).
Using these values, a Mean Weighted Discrepancy Score (MWDS) (C) is calculated for each competency:
\[ \text{MWDS} = (\text{Importance Score} - \text{Competence Score}) \times \text{Mean Importance Score} \]
Competencies with the highest positive MWDS represent the most critical training needs.
"Perceived level of extension" (A) is not a parameter in this model.
Therefore, (B), (C), and (D) are the correct components of the Borich model.
Step 3: Final Answer:
The Borich model evaluates training needs using competence, importance, and mean weighted discrepancy scores.