E/C.12/CRI/CO/5 (b) Take appropriate measures to bring down the repeat and dropout rates in secondary education, in particular among disadvantaged and marginalized groups; (c) Take all necessary measures to improve the quality of teaching, including by increasing the number of qualified teachers in receipt of adequate remuneration and benefits, and improving teaching materials and infrastructure. Higher education 60. While the Committee appreciates the efforts made to provide access to higher education, it is concerned that such access remains limited, in particular for students from disadvantaged and marginalized groups (art. 13). 61. The Committee recommends that the State party take all necessary measures to progressively introduce free higher education and to ensure that higher education is accessible to all on the basis of capacity, in accordance with article 13 (2) (c) of the Covenant. Cultural rights 62. The Committee notes with concern that the measures taken to respect the cultural diversity of indigenous peoples and Afro-descendant populations and to foster the use of indigenous languages are still limited. It is also concerned that both the culture of indigenous peoples and Afro-descendant populations and the use of indigenous languages are not encouraged sufficiently, particularly in the area of education (art. 15). 63. The Committee recommends that the State party: (a) Take the necessary measures to strengthen the protection of cultural rights and respect for cultural diversity, including more effective implementation of the bilingual intercultural education system; (b) Create favourable conditions for indigenous peoples and Afrodescendant populations to preserve, develop, express and disseminate their identity, history, culture, languages, traditions and customs. Benefits of scientific progress 64. The Committee welcomes the information provided by the State party concerning the authorization of the use of the assisted reproduction technology of in vitro fertilization, pursuant to Executive Decree No. 39210 of 10 September 2015; however, it is concerned that the measure is not sufficiently effective to ensure access to the right to enjoy the benefits of scientific progress and that it also adversely affects the right to sexual and reproductive health and the right to form a family (arts. 15, 10 and 12). 65. The Committee recommends that the State party continue its efforts to ensure, in practice, access to in vitro fertilization technology and to guarantee the right of persons who need to use this technology to enjoy the benefits of scientific progress and its applications. D. Other recommendations 66. The Committee encourages the State party to ratify the International Convention on the Protection of the Rights of All Migrant Workers and Members of Their Families. It also encourages the State party to ratify the ILO Maternity Protection Convention (Revised), 1952 (No. 103) and the ILO Equality of Treatment (Social Security) Convention, 1962 (No. 118). 10 GE.16-18309