This book presents the results of a series of literacy experiments in ten Niger-Congo languages, representing four language families and spanning five countries. It asks the research question, "To what extent does full tone marking contribute to oral reading fluency, comprehension and writing… read more
Bird (1999a, 1999b) was one of the first linguists to draw attention to the similarities between the newly emerging Roman script orthographies of African languages, where tone is often under-represented, and Semitic orthographies, where most vowels are typically under-represented. This paper… read more
Orthographic depth is a key concept in literacy acquisition and can be measured separately for completeness, simplicity and consistency. The first of these is pertinent to discussions about whether tone should be marked in African orthographies, because a zero tone representation is relatively… read more
Discussions about tone orthography have long been hampered by imprecise terminology. This article aims to bring clarity by means of an explicit typology composed of six parameters. Each parameter is defined by a choice: domain, target, symbol, position, density, and depth. The orthographer assesses… read more
Some orthographies represent tone phonemically by means of diacritics; others favor zero marking. Neither solution is entirely satisfactory. The former leads to graphic overload; the latter to a profusion of homographs; both may reduce fluency. But there is a ‘third way’: to highlight the grammar… read more
Discussions about tone orthography have long been hampered by imprecise terminology. This article aims to bring clarity by means of an explicit typology composed of six parameters. Each parameter is defined by a choice: domain, target, symbol, position, density, and depth. The orthographer… read more
The effect of Crowding has long been recognised by cognitive psychologists engaged in examining the reading process. Yet it is not generally taken into account by most field linguists involved in the development of tone orthographies for emerging African languages. True, there is a general… read more
Two orthographies have been developed for Kabiye, a Gur language spoken mainly in Togo. The first aim of this paper is to provide an accurate historical summary concerning their development, teasing out some of the sociolinguistic issues which led to their separate evolution. Following this, I… read more
