The cost of Butterfly Phonics as delivered in the trial was estimated at £108.50 per pupil, assuming eight pupils per class¶

Claim · All claims
Evidence · 1 study · causal r2 · q2
Currency · newest study 2015 · not yet checked against its sources · not reviewed by a person

Subclaims¶

q2 i? The estimated cost was £108.50 per pupil, based on eight pupils per Butterfly Phonics class, including staff salaries, training costs and course books at about £10 each. → Christine Merrell 2015

Evidence¶

Christine Merrell 2015¶

Christine Merrell, Adetayo Kasim. (2015). Butterfly Phonics: Evaluation Report and Executive Summary. Education Endowment Foundation. https://eric.ed.gov/?id=ED581118

q2 · i? · causal · r2

Cost estimate reported in the executive summary. The report adds that Butterfly teaching staff cost £35-40 for a one-hour class and specialist training from Irina Tyk cost £600 for half a day; the overall cost rating was ££.

"The cost of Butterfly Phonics as it was delivered in this evaluation is estimated at £108.50 per pupil. This estimate is based on the assumption that there are eight pupils in each Butterfly Phonics class, and includes the salaries of the Butterfly Phonics teaching staff, training costs and the cost of course books (about £10 each)."

Discussion¶

Related Claims¶

• Butterfly Phonics improved reading comprehension of struggling Year 7 readers more than business-as-usual, with an effect size of 0.43 equivalent to five months' progress, but the effect was below the trial's minimum detectable effect size — related