T. Berry Brazelton
1918–2018 · USInfant cues
T. Berry Brazelton shaped discourse on digital media limits and displacement effects through research and public writing.
Darker cells mean a higher score for this topic on that metric.
Evidence strength82
Daily impact88
Difficulty55
Age span85
Expert consensus50
Urgency75
LessMore
Last reviewed Sources & creditsMedia creditsMethodology
Quick answers
What defines screen time?
Screens displace sleep, movement, and conversation — framed by digital media limits and displacement effects.
Is there strong evidence on screen time?
Evidence score 82/100 reflects published cohort, RCT, and meta-analytic work — gaps remain in cross-cultural replication.
Does screen time apply at every age?
Age range 0–18 years marks peak relevance; principles may extend but intensity varies by developmental stage.
How hard is screen time in practice?
Difficulty score 55/100 captures typical caregiver load — context, support, and temperament modify real experience.
What do experts agree on?
Consensus score 50/100 — areas of agreement and live debate appear in the science section.
How urgent is attention to screen time?
Urgency 75/100 reflects time-sensitivity; some topics tolerate gradual change, others need early action.
Screen Time drew researchers from psychology, paediatrics, education, and anthropology.
Eight influential figures below span theory, clinical work, and global policy.
Eight guides worth knowing
Erikson
1902–1994 · Germany/USPsychosocial stages
Erikson shaped discourse on digital media limits and displacement effects through research and public writing.
Judy Dunn
b. 1940 · UKSibling relationships
Judy Dunn shaped discourse on digital media limits and displacement effects through research and public writing.
WHO Child Health
1948– · GlobalGlobal standards
WHO Child Health shaped discourse on digital media limits and displacement effects through research and public writing.
Vygotsky
1896–1934 · Soviet UnionZone of proximal development
Vygotsky shaped discourse on digital media limits and displacement effects through research and public writing.
Robert Pianta
b. 1954 · USSchool transition
Robert Pianta shaped discourse on digital media limits and displacement effects through research and public writing.
Bowlby
1907–1990 · UKAttachment theory
Bowlby shaped discourse on digital media limits and displacement effects through research and public writing.
Steinberg
b. 1952 · USAdolescent brain
Steinberg shaped discourse on digital media limits and displacement effects through research and public writing.
Guides lab
Select up to three guides to compare side by side.
T. Berry Brazelton
1918–2018 · USInfant cues
T. Berry Brazelton shaped discourse on digital media limits and displacement effects through research and public writing.
Erikson
1902–1994 · Germany/USPsychosocial stages
Erikson shaped discourse on digital media limits and displacement effects through research and public writing.
Judy Dunn
b. 1940 · UKSibling relationships
Judy Dunn shaped discourse on digital media limits and displacement effects through research and public writing.
WHO Child Health
1948– · GlobalGlobal standards
WHO Child Health shaped discourse on digital media limits and displacement effects through research and public writing.
Vygotsky
1896–1934 · Soviet UnionZone of proximal development
Vygotsky shaped discourse on digital media limits and displacement effects through research and public writing.
Robert Pianta
b. 1954 · USSchool transition
Robert Pianta shaped discourse on digital media limits and displacement effects through research and public writing.
Bowlby
1907–1990 · UKAttachment theory
Bowlby shaped discourse on digital media limits and displacement effects through research and public writing.
Steinberg
b. 1952 · USAdolescent brain
Steinberg shaped discourse on digital media limits and displacement effects through research and public writing.
Pick guides above to compare.
Together they moved screen time from opinion columns toward evidence-informed frameworks still debated today.
Keep exploring
Nearby ages & themes
😴
Sleep
Circadian development, night waking, and safe sleep environments — among the most researched and debated parenting topics globally.
Evidence 91 🍽️Feeding
Breast, bottle, solids, and picky eating — Ellyn Satter's division of responsibility frames feeding as a relational not battlefield task.
Evidence 93 🚧Discipline Conflicts
When limits meet resistance — discipline conflicts escalate when stress, inconsistency, or developmental mismatch go unaddressed.
Evidence 79 👯Sibling Rivalry
Competition for attention and resources — Judy Dunn's sibling research shows conflict is normative but manageable with fair attention and teaching repair.
Evidence 76 🎒School Readiness
Self-regulation beats flashcards — school readiness combines executive function, language, and social entry more than early academic drilling.
Evidence 88