Japanese Journal of Environmental Technology, Vol. 55 No. 1. Machine-translated from Japanese.
This paper is a Google Translate rendering of a Japanese journal article. The translation is serviceable but produces some awkward constructions and occasional near-nonsense (e.g. "MSC (Mean School of Science)" is clearly a mistranslation of a Japanese abbreviation for "most significant change"). Some figures are partially illegible due to untranslated Japanese text. These issues should be borne in mind when interpreting any fine-grained claims about method.
The authors' starting problem was methodological. Previous surveys of their workshop participants had shown that environmental awareness increased "at the time of or immediately after" workshops, but it was unclear what specific life experiences or "triggers" had produced that awareness, or whether it persisted. They wanted to go beyond simple pre/post attitude measurement toward a richer understanding of the qualitative conditions under which environmental awareness forms and changes.
They considered alternatives. Outcome mapping was set aside because, the authors argue, it primarily relies on pre-defined outcome structures and therefore makes it difficult to capture unexpected changes. This is the authors' own characterisation of outcome mapping; the 2005 MSC Guide does not engage with outcome mapping at all, and readers familiar with outcome mapping will note that the method does include instruments — such as outcome journals — designed to capture unanticipated changes. The authors' dismissal may therefore be a simplification, and it is difficult to judge whether this reflects a considered methodological position or a limitation of the machine translation. Simple before-and-after reflection workshops were rejected because, while they can surface awareness changes, they "struggle to reveal the episodic context of the underlying experiences." The River of Life method was noted as a possibility but set aside because its high degree of expressive freedom makes it difficult to build shared understanding quickly in a group of strangers.
MSC was chosen for two reasons that the authors make explicit. First, it aligns with the study's first objective (improving participants' environmental awareness) because the process of articulating and discussing significant changes is itself formative — it fosters self-understanding and mutual understanding. Second, it serves the study's second objective (identifying triggers for awareness change) because it asks participants to identify and explain what they found most important, thereby surfacing the qualitative logic of change in participants' own terms.
From the perspective of the 2005 MSC Guide, this rationale is well-grounded. The Guide positions MSC as particularly suited to situations where changes are complex, unexpected, and difficult to capture with standardised indicators, and where the process of reflection and discussion is valuable in its own right — not merely a data collection exercise. The authors' dual justification (MSC as both evaluation tool and developmental process) reflects this understanding.
The workshop was held on 24 March 2025 at the former Kyoto University Experimental Forest Office. Sixteen high school students from five schools participated, divided into three groups of five or six. Each group had an assigned facilitator (a teacher or postgraduate student) and a teaching assistant (a graduate student of similar age to participants). The workshop was one day; the MSC component was embedded within a broader event.
The key methodological innovation was the combination of MSC with a Lifeline Chart (LLC) as a preparatory step. Participants were given a graph with age on the horizontal axis and environmental awareness (0–100%) on the vertical axis, and asked to plot their own awareness trajectory over their lifetime, annotating peak and trough periods with notes about what was happening at each point. Teaching assistants shared their own completed LLCs as worked examples before participants created theirs.
This LLC phase served as the story-collection substrate for MSC. Rather than asking participants to generate SC stories cold, the LLC gave each participant a structured personal narrative from which SCs could be identified. The process then followed a recognisable MSC structure: participants reflected on their LLCs and wrote SC episodes on sticky notes, groups shortlisted to their top three SCs, a sticker vote was held among these, and the group then attempted to select one MSC.
One departure from standard MSC practice was the decision not to anonymise SCs. The authors explain this as a deliberate choice: they judged that suppression of opinion through hierarchical or close-relationship pressure was unlikely in a group of students meeting for the first time, and that the LLC's open visualisation format made non-anonymisation a natural extension of the process. The selected MSCs were summarised on large sheets of paper visible to all groups.
Results: two of the three groups successfully selected an MSC. One could not reach consensus. The MSCs selected reflected: (Group 1) a student's experience of overcoming an aversion to insects through inquiry and teacher guidance, which raised their ecological understanding; and (Group 2) a recognition that active, self-directed high-school nature experiences differ qualitatively from the passive early-childhood nature experiences that had also been significant.
Assessed against the 2005 Guide, the implementation diverges from the canonical model in several important respects. The Guide envisages MSC as an ongoing multi-level monitoring system, with stories collected periodically from field participants, then selected and fed back through successive organisational layers. Here, collection and selection occur in a single compressed workshop. There are no formal domains of change as defined in Step 2 of the Guide — the single broad theme (environmental awareness change) functions as an implicit domain. There is no multi-level selection hierarchy, no feedback loop from one selection round to the next, and no verification of whether selected stories represent wider patterns. These absences are not necessarily criticisms: the Guide itself acknowledges that MSC can be adapted, and the authors are using it for a purpose — structured qualitative sense-making within a single event — that is different from organisational programme monitoring.
Verbal articulation by young participants. The central operational challenge was that high school students, particularly those meeting strangers, struggle to verbalise and share personal changes within a short timeframe. This is a genuine problem: MSC depends on story-telling, and if participants cannot generate stories, the method fails. The LLC addresses this directly by providing a pre-structured visual scaffold. Instead of asking "what has changed?", the LLC asks participants to draw change — a cognitively and emotionally lower-threshold task — before moving to narration. The authors describe this as functioning "effectively as an introductory stage of storytelling in MSC."
The 2005 MSC Guide does not discuss this specific adaptation, but it is consistent with the Guide's general emphasis on accessibility. The Guide stresses the importance of building capability and choosing facilitation approaches appropriate to context. The LLC adaptation is a competent response to a recognised constraint.
Short time available. The workshop was a single session. Standard MSC, as described in the Guide, involves collection across an organisation over an extended period, followed by selection at multiple levels. The authors compress this into hours. They address this partly through the LLC (which front-loads story generation) and partly through simplified group-level selection (shortlist of three, sticker vote, group decision). One group's failure to reach consensus suggests the time compression created genuine difficulty in the selection phase.
Anonymity versus open sharing. The Guide notes that anonymisation of SCs is commonly used to avoid groupthink and suppression of minority views. The authors took the opposite approach and offered a reasoned justification: first-meeting strangers without hierarchical relationships are unlikely to suppress opinion. Whether this judgement was correct is difficult to assess from the paper, but the rationale is explicit and the logic is defensible. The authors also argue that non-anonymisation supported self-disclosure and mutual understanding, which aligns with the dual purpose of the workshop.
One group unable to select an MSC. This is acknowledged but not analysed. It is worth noting that the Guide anticipates difficulty in reaching consensus and treats it as part of the method's value — the discussion itself is productive regardless of whether a single story is selected. The paper does not explore what was distinctive about the group that could not agree, which would have been methodologically informative.
For participants. The workshop produced active, interactive learning. The discussion was described as "more lively than expected." Participants were able to surface and compare qualitative differences in the triggers for their environmental awareness — not merely rank their awareness on a scale. The process appeared to shrink psychological distance between strangers rapidly, enabling genuine peer exchange within a short timeframe.
For the study's analytical objectives. The combined LLC/MSC method generated findings that simple surveys would not: the distinction between passive early-childhood nature experiences (mediated by parents) and active, self-directed high-school nature experiences emerged from the selection and discussion process rather than being pre-specified by the researchers. This is precisely the kind of unexpected but coherent finding that the MSC Guide claims the technique is designed to surface.
Methodological contribution. The authors demonstrate that MSC can be applied to a thematic discussion among strangers with no shared programme experience — extending its conventional application domain. This is a genuine and non-trivial finding, consistent with the Guide's openness about the technique's adaptability across contexts.
Practical efficiency. No pre-workshop story collection was required, and anonymisation procedures were unnecessary. This reduced burden on both organisers and participants.
The LLC (or equivalent visual scaffold) is a transferable solution to a general MSC problem. The challenge of generating stories from participants who have limited expressive experience, or who are meeting strangers, is not unique to this study. Any MSC implementation with young people, or with communities not habituated to narrative evaluation, might benefit from a structured visual pre-step that externalises personal history before participants are asked to narrate it. The authors' claim that this has no precedent in environmental education is plausible; the broader MSC community should consider this adaptation.
Non-anonymisation warrants context-specific judgement, not a default rule either way. The Guide recommends anonymisation primarily to protect against social pressure from close relationships or hierarchies. Where those pressures are absent, open sharing may support better outcomes. This finding encourages MSC practitioners to treat anonymisation as a contextual decision rather than a procedural requirement.
The method's compression into a single event has both advantages and limits. The one-session format is highly practical and reduces barriers to participation. However, it sacrifices the multi-level selection and feedback loop that the Guide considers central to MSC's value as a monitoring system. In particular, the absence of a feedback mechanism means there is no mechanism by which selected stories can redirect future story collection — a key element of MSC's self-correcting quality. Users should be explicit about whether they are using MSC as a monitoring system or as a one-off qualitative sense-making tool, since these are substantially different applications with different validity claims.
The distinction between awareness and behaviour warrants explicit attention. The authors themselves note — correctly — that it remains unclear whether increased environmental awareness leads to environmentally conscious behaviour. This is a structural epistemic limitation, but it runs deeper than they acknowledge: the MSC process in this study captures participants' retrospective accounts of what changed their awareness, not independent evidence of behavioural change or even verified accounts of awareness change. The Guide is clear that MSC stories describe change as perceived and reported by participants, and that verification is a separate step. Future users of MSC in environmental education settings should be careful not to present selected stories as evidence of programme impact on behaviour.
Applying MSC to groups without shared programme experience is viable but changes the nature of what is being measured. The Guide's standard question asks what was the most significant change that took place for participants in the programme — a question that frames change within a programme context without necessarily attributing it to the programme. The Tokuchi study is asking a meaningfully different question: what life experience most significantly shaped your current environmental orientation? The technique transfers across these framings, but users should be clear about what claim the selected MSC actually supports in their particular application.