Speech Development

• Average age children learn to pronounce English consonants correctly     (Based on 15 English speech acquisition studies compiled by McLeod and Crowe, 2018).

  • ​Age 2-3: p, b, m, d, n, h, t, k, g, w, ng, f, y​

  • ​Age 4: l, j, ch, s, v, sh, z

  • ​Age 5: r, zh, th (voiced)

  • Age 6: th (voiceless)

• Speech Intelligibility Ratings based on Bowen, C. (2011). 

  • Age ​1: 25% intelligibile to strangers

  • Age 2: 50% intelligibile to strangers

  • Age 3: 75% intelligible to strangers

  • Age 4: 100% intelligible to strangers

• Phonological Processes: labels, definitions, examples, and age of elimination

  • ​https://littlebeespeech.com/resources/pdf/phonological_processes.pdf