In the fall of 1998, of the 4 million children attending kindergarten in the United States, 55% were in all-day programs and 45% were in part-day programs (West, Denton, & Germino-Hausken, 2000, p. v). The growing number of all-day programs is the result of a number of factors, including the greater numbers of single-parent and dual-income families in the workforce who need all-day programming for their young children, as well as the belief by some that all-day programs better prepare children for school.
Research during the 1970s and 1980s on the effects of all-day kindergarten yielded mixed results. In a review of research on all-day kindergarten, Puleo (1988) suggested that much of the early research employed inadequate methodological standards that resulted in serious problems with internal and external validity; consequently, the results were conflicting and inconclusive. Studies conducted in the 1990s also produced mixed results; however, some important trends appeared. This Digest discusses the academic, social, and behavioral effects of all-day kindergarten, as well as parents' and teachers' attitudes and the curriculum in all-day kindergarten classes.
Hough and Bryde (1996) looked at student achievement data for 511 children enrolled in half-day and all-day kindergarten programs in 25 classrooms. Children in the all-day programs scored higher on the achievement test than those in half-day programs on every item tested.
In a study of the effectiveness of all-day kindergarten for the Newark, New Jersey, Board of Education, Koopmans (1991) looked at two cohorts of students: one in its third year of elementary school and the other in its second year. There were no significant differences in reading comprehension and math scores on the California Test of Basic Skills (CTBS) for the first cohort; however, both reading comprehension and math scores were higher for students in the second cohort who had attended all-day kindergarten.
Elicker and Mathur (1997) also found slightly greater academic progress in kindergarten and higher levels of first-grade readiness for children in an all-day kindergarten program. Teachers reported significantly greater progress for all-day kindergarten children in literacy, math, and general learning skills.
Finally, in a meta-analysis of 23 studies on all-day kindergarten, Fusaro (1997) concluded that children who had attended all-day kindergarten achieved at a higher level than children in half-day kindergarten programs. According to Fusaro, all-day kindergarten accounted for approximately 60% of the variance in outcome measures.
Parents reported that all-day kindergarten teachers provided suggestions for home activities more frequently (Hough & Bryde, 1996). They also felt that the all-day kindergarten schedule benefited their children socially (Towers, 1991).
Teachers surveyed felt that the all-day program provided more time for individual instruction (Greer-Smith, 1990; Housden & Kam, 1992). They also indicated that they had more time to get to know their children and families, thus enabling them to better meet children's needs (Elicker & Mathur, 1997).
Some studies (Hough & Bryde, 1996; Morrow et al., 1998) found that all-day kindergarten teachers utilized small-group instruction and provided for small-group activities more frequently than half-day teachers. Hough and Bryde also found more individualized instruction in all-day programs, when compared with half-day programs.
An interesting pattern occurred when Elicker and Mathur (1997) compared data collected from the first and second years of their study. They noted that many of the differences in kindergarten programming became stronger during the second year of implementation. They found that children in the all-day classrooms in the second year of implementation were "initiating more learning activity and receiving more one-to-one instruction from their teachers" (p. 477). Further research in this area is needed to determine whether, over time, all-day kindergarten teachers restructure the curriculum to accommodate the increased amount of time available to them and the children in more developmentally appropriate ways.
An all-day kindergarten program can provide children the opportunity to spend more time engaged in active, child-initiated, small-group activities. Teachers in all-day kindergarten classrooms often feel less stressed by time constraints and may have more time to get to know children and meet their needs.
Elicker, J., & Mathur, S. (1997). What do they do all day? Comprehensive evaluation of a full-day kindergarten. Early CHILDHOOD RESEARCH QUARTERLY, 12(4), 459-480. EJ 563 073.
Fusaro, J. A. (1997). The effect of full-day kindergarten on student achievement: A meta-analysis. CHILD STUDY JOURNAL, 27(4), 269-277. EJ 561 697.
Greer-Smith, S. (1990). THE EFFECT OF A FULL-DAY KINDERGARTEN ON THE STUDENT'S ACADEMIC PERFORMANCE. Unpublished master's thesis, Dominican University, San Rafael, CA. ED 318 570.
Gullo, D. F. (1990). The changing family context: Implications for the development of all-day kindergarten. YOUNG CHILDREN, 45(4), 35-39. EJ 409 110.
Hough, D., & Bryde, S. (1996, April). THE EFFECTS OF FULL-DAY KINDERGARTEN ON STUDENT ACHIEVEMENT AND AFFECT. Paper presented at the annual conference of the American Educational Research Association, New York. ED 395 691.
Housden, T., & Kam, R. (1992). FULL-DAY KINDERGARTEN: A SUMMARY OF THE RESEARCH. Carmichael, CA: San Juan Unified School District. ED 345 868.
Karweit, N. (1992). The kindergarten experience. EDUCATIONAL LEADERSHIP, 49(6), 82-86. EJ 441 182.
Koopmans, M. (1991). A STUDY OF THE LONGITUDINAL EFFECTS OF ALL-DAY KINDERGARTEN ATTENDANCE ON ACHIEVEMENT. Newark, NJ: Newark Board of Education. ED 336 494.
Morrow, L. M., Strickland, D. S., & Woo, D. G. (1998). LITERACY INSTRUCTION IN HALF- AND WHOLE-DAY KINDERGARTEN. Newark, DE: International Reading Association. ED 436 756.
Olsen, D., & Zigler, E. (1989). An assessment of the all-day kindergarten movement. EARLY CHILDHOOD RESEARCH QUARTERLY, 4(2), 167-186. EJ 394 085.
Puleo, V. T. (1988). A review and critique of research on full-day kindergarten. ELEMENTARY SCHOOL JOURNAL, 88(4), 427-439. EJ 367 934.
Towers, J. M. (1991). Attitudes toward the all-day, everyday kindergarten. CHILDREN TODAY, 20(1), 25-28. EJ 431 720.
West, J., Denton, K., & Germino-Hausken, E. (2000). AMERICA'S KINDERGARTNERS [Online]. Washington, DC: National Center for Educational Statistics. Available: http://nces.ed.gov/pubs2000/2000070.pdf.
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