A study of study habits gives two definitions of 'enough sleep'. A: rest that leaves a learner feeling refreshed. B: seven or more hours recorded in a nightly sleep log. Which one is operational?

A coastal study defines 'plastic waste' twice. A: every plastic item collected from a 50 meter strip of shore each Saturday and sorted by type. B: plastic material that harms the coastal environment. Which one is operational?

A report says: 'Screen time is the share of a person's day given to digital media rather than to other activities.' Which kind of definition is this?

A report says: 'Urban heat is a city being warmer than the land around it. Concrete and metal roofs hold the sun's heat, the way a bare schoolyard stays hot long after noon.' Which kind of definition is this?

A study defines 'flood preparedness' as a household's genuine readiness for sudden flooding and its full awareness of local risk. Why is this definition not operational?

An introduction must make 'urban heat island' clear to readers who have never met the term, using a comparison and an everyday example. Which kind of definition does that need call for?

Before counting begins, a team must settle exactly which learners will be recorded as 'frequent absentees' in its survey. Which kind of definition does the team need?

A literature review opens by giving the general meaning of 'reading habit' as other writers use it, before the study narrows the term for itself. Which kind of definition is that opening?

Definitions of 'healthy canteen meal'. A: a meal that gives a growing learner the nourishment the body needs. B: a meal with at least one vegetable serving and no fried item on the daily menu card. Which is operational, and why?

An operational definition must state how the concept will be identified or measured in the study itself.

Definitions of 'part-time worker'. A: a learner who regularly gives paid labor to an employer outside school hours. B: a learner who ticks 'yes' to paid work last week on the survey form. Which one is operational?

Which definition of 'water quality' could a team actually apply during a river visit?

A report defines 'commuting time' by walking through a learner's morning: the walk to the corner, the wait for a jeepney, the ride, the last short walk. Which kind of definition is this?

A study defines 'textual engagement' as the depth of attention a reader gives a text. A reviewer says this is not operational. What is the reviewer pointing out?

A team has defined 'active class participation' as a learner's willingness to join in. Which change would make the definition operational?

A writer wants readers to grasp the general meaning of 'food insecurity' before any figures appear. Which kind of definition belongs there?

Definitions of 'heavy screen user'. A: a learner whose weekly phone report shows more than four hours of screen use a day. B: a learner who leans on a screen for most free time. Which one is operational?

Which definition of 'litter' is operational, even though a different team might set a different rule?

Two definitions of 'a hot day'. A: a day that feels far hotter than the town is used to. B: a day when the school thermometer reads 34 degrees Celsius or higher at noon. Which one is conceptual?

A study defines 'digital literacy' as a learner's underlying capacity to handle online information critically and ethically. Is that definition operational?