Observer training should be completed before using OPTIS to achieve good to very good reliability¶

Design · All designs
Evidence · no claims cited

Description¶

The article recommends that a three-step, eight-hour observer training programme be realised before using OPTIS. The training comprises individual study of the protocol and user manual, observation of at least one 45-minute video-recorded lesson, and comparison and discussion of ratings with other observers. The article reports that by applying this training, good to very good reliability values could be achieved.

Design Implications¶

Context¶

Requirements¶

At least one 45-minute video-recorded lesson must be observed during training, with ratings compared and discussed with other observers

Constraints¶

The article notes that training length itself does not affect rating quality, positioning eight hours midway between common established trainings of 5–24 hours

Target Learners¶

Observer trainees (university students, researchers)

Learning Goals¶

Developing consistent understanding of observation categories for reliable classroom observation

Claims¶

Optis Inter Observer Reliability Improved Training [+M]

Examples¶

-

Key Sources¶

Mühlberg Theres, Bachner Joachim, Mess Filip, Schmid-Ellinger Jan. (2026). Observing teaching principles in school - Development and Validation of an Observation Protocol (OPTIS). PLOS One. https://doi.org/10.1371/journal.pone.0355710

Page metadata

Field	Value
`type`	`design`
`id`	`observer-training-before-optis-use`
`title`	`Observer training should be completed before using OPTIS to achieve good to very good reliability`
`description`	`The article recommends that a three-step, eight-hour observer training programme be realised before using OPTIS.`
`status`	`review`
`generated`	by `process:settle-candidates` on `2026-11-04`
`trust`	unverified — no one has confirmed this page's content
`sources`	1 — `mühlberg-theres-2026`

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