Completion Rate - the percentage of first year entrants in a cycle of education surviving to the end of the cycle.

Drop-out Rate - the proportion of pupils/students who leave school during the year as well as those who complete the grade/year level but fail to enroll in the next grade/year level the following school year to the total number of pupils/students enrolled during the previous school year.

Education, Elementary - the first level of formal education consisting of the primary grades I to IV and the intermediate grades V to VI for public and private schools or grades V to VII for some private schools.

Education, Formal - a highly institutionalized, chronologically graded and hierarchically structured education system, spanning from the primary schools to the tertiary schools.

Education, Higher - the stage of formal education following the secondary level covering the programs on: a) all courses of study leading to bachelor's degree and b) all degree courses of study beyond bachelor's degree level.

Education, Informal - a lifelong process of learning by which every person acquires and accumulates knowledge, skills, attitudes and insights from daily experiences at home, at work, at play and from life itself.  In the present context, it is strongly influenced by mass media.

Education, Non-Formal - any organized, systematic educational activity outside the framework of the formal system to provide selected types of learning to a cross-section of population and across age groups.

Education, Pre-School - organized child learning and socialization activities such as nursery, preparatory, and kindergarten proper below Grade I.

Education, Secondary - the stage of formal education following the primary level concerned essentially with continuing basic education and expanding it to include the learning of employable/gainful skills, usually corresponding to four years of high school.

Education, Tertiary - the level of education covering post-secondary and higher education.

Education, Vocational/Technical - a post-secondary education with non-degree programs leading to one, two, or three-year certificate in preparation for a group of middle-level occupations.

Highest Educational Attainment or Highest Grade Completed - refers to the highest grade or year completed in school, college or university, by person 5 years of age and over.

Enrollment - the total number of pupils/students who have registered in a class or school during the current school year.

Enrollment Ratio, Gross - the total enrollment in a given level of education as a percentage of the population which according to national regulations should be enrolled at this level.  It is a measure of the "capacity" of a region's elementary or secondary schools.

Graduation Rate - the proportion of pupils/students who finished Grade VI/Fourth Year in the present year to the number of pupils/students who enrolled in Grade VI/Fourth Year in the present year.

Literacy - the ability to read and write a simple message.

Literacy, Functional - a significantly higher level of literacy which includes not only reading and writing skills but also numeracy skills.  The skills must be sufficiently advanced to enable the individual to participate fully and efficiently in activities commonly occurring in his life situation that require a reasonable capability of communication by written language.

Literacy, Simple - ability of a person to read and write with understanding a simple message in any language or dialect.  The simple literacy status of an individual can be determined based on the respondent's answer to the question " Can _____ read and write a simple message in any language or dialect?"

Literacy Rate - the percentage of population which can read and write a simple message in any language or dialect.

Literate - a person who can both read and write a simple message in any language or dialect.

Out-of-School Youth (OSY) - boys and girls who belong to any of the categories; a) 7-14 years old who are not enrolled; b) 15-24 years old, not enrolled, not employed and not a tertiary level graduate.

Participation Rate - the ratio between the enrollment in the school-age range to the total population of that age range.

Performance Indicators - refer to the several key indicators that can be computed and utilized for evaluating the educational system's performance at various levels, using the data available in the education statistics data bank.  These indicators constitute an important component of a management information system.

Repetition Rate - the proportion of pupils who enroll in the same grade/year more than once to the total number of pupils/students enrolled in that grade/year during the previous year.

Retention Rate - the proportion of the enrollment in any school year that continues to be in school the following year.

School - institution recognized by the state which undertakes educational operations.

School, Government/Public - school established, operated and supported by the government.

School, Private - an educational institution maintained and administered by private individuals or groups.

School-Age Population - the population between the ages of seven and twenty-four, inclusive, irrespective of the existing requirements of compulsory education or the period of education provided for in various types of schools.

School Year - the period of time, of approximately 32 to 40 weeks, when schools offer daily instruction broken by short intermission periods (e.g., Christmas and summer vacations and holidays).

Student - one who regularly attends an educational institution of secondary or higher level.

Survival Rate (Cohort) - the population of enrollees in the beginning grade or year who reach the final grade or year at the end of the required number of years of study.

Teacher - person engaged in actual teaching of a group of pupils/students on full-time or part-time basis.

Teach-Pupil/Student Ratio - Gross - the proportion of the number of authorized positions for teachers at a certain level in a given year to the enrollment at the same level in the same year.  Net - the proportion of the number of teachers actually teaching at a certain level in a given year to the enrollment at the same level in the same year.

Transition Rate - the percentage of pupils who graduate from one level of education and move on to the next higher level (from primary to intermediate; or from intermediate to secondary).