Table 2.

Details of review items relating to scalability framework

Component	Variable	Operational definition	Assessment criteria
Delivery	Test environment	Information relating to whether the field testing was conducted in a school setting	Yes = test performed in a school setting No = test not performed in a school setting NR
	Test duration	Expected or actual duration of the field test protocol reported	Yes = duration of test/trial reported NR
	Testing interval	Duration relating to the interval over which the testing was conducted	Yes = duration reported NR
	Delivery staff	Information relating to the personnel used to administer the testing protocols and record the results	Yes = tests performed by usual service delivery staff (PE teachers) No = Researchers or clinicians administered tests NR
Evidence of operating at scale	Sample size	Evidence that the field test has been used to assess fitness of young people at a national/population level	Yes = field test administered at a national or international level Partial = field test has been implemented in multiple testing settings within a local area No = small sample used/single school
	Number of schools	Evidence that the implementation of the field test is likely to be acceptable to multiple target schools when scaled up	Yes = multiple schools used in study No = single or no school used NR
Effectiveness	Validity	How well a specific test measures what it intends to measure	Yes = strong or moderate evidence of acceptable criterion related validity of test No = limited evidence
	Test–retest reliability	The consistency of performer/s scoring over repeated rounds of testing	Yes = strong or moderate evidence of acceptable test–retest reliability No = limited evidence
	Reach and adoption	Differential effect, reach and adoption across target groups, socioeconomic status and settings	Yes = reach and adoption is reported NR
	Completion rates	Measure of acceptability to individuals	Yes = completion rates are reported NR
Cost considerations	Cost effectiveness	Information relating to the cost of the field test per head is provided	Yes = cost per head of test is reported NR
	Resource requirements	Information relating to the required resources in terms of equipment, space, skills, competencies, workforce, and financial requirements provided	Yes = resource requirements are reported Partial = only limited reporting concerning some elements NR
	Practical implementation issues/considerations	The ease with which the field test can be undertaken, administered and scored	Yes = feasibility/practicality is discussed Partial = only limited reference to practicality issues included in discussion NR

PE physical education, NR not reported