Which data collection system allows teachers access to previous assessment scores and attendance patterns?

The correct choice highlights the importance of a data collection system that enables teachers to review historical data about students. Record reviewing is a comprehensive method that provides access to past assessment scores and attendance patterns, which can be critical for understanding a student's academic history and behavioral trends over time. This approach allows educators to identify strengths and weaknesses, track progress, and make informed decisions regarding instruction and support.

By analyzing previous assessment scores, teachers can tailor their teaching strategies to better meet the needs of individual students. Similarly, examining attendance patterns can indicate any potential issues that may affect students' academic performance, such as frequent absences. This holistic view of data supports effective planning and intervention strategies, ultimately benefiting students' learning experiences.

The other options pertain to distinct methods that do not provide access to previous records in the same comprehensive manner. Testing typically focuses on assessing current knowledge or skills, interviewing gathers information through direct dialogue, and observing involves monitoring behavior in real-time situations, but none of these methods facilitate the review of historical data in the way that record reviewing does. Thus, record reviewing stands out as the most effective choice for accessing prior assessment scores and attendance trends.