This study examined the impact of cultural discontinuity on the academic outcomes of Latina/o high school students. Hierarchical multiple regression was utilized to (a) investigate the significant differences between the characteristics and academic outcomes of high school students who do and do not experience cultural discontinuity between their home- and school-based learning and social experiences based on Eurocentric cultural values, and (b) examine the contribution of demographic variables, socio-cultural variables, academic experiences, and cultural discontinuity to students’ cumulative grade point average (GPA) and standardized test scores. Data were collected from two high schools in South Central Texas. Findings revealed that cultural discontinuity had an inverse relationship with GPA; therefore, the more cultural discontinuity based on Eurocentric cultural values that a student experienced, the lower was the student’s GPA.
American Psychological Association. (2003). Guidelines on multicultural education, training, research, practice, and organizational change for psychologists. American Psychologist, 58, 377-402. doi:10.1037/0003-066X.58.5.377
2.
ArunkumarR.MidgleyC.UrdanT. (1999). Perceiving high or low home-school dissonance: Longitudinal effects on adolescent emotional and academic well-being. Journal of Research on Adolescence, 9, 441-466.
3.
BakerP. B. (2005). The impact of cultural biases on African American students’ education: A review of research literature regarding race based schooling. Education and Urban Society, 37, 243-256. doi:10.1177/0013124504274187
4.
BalfanzR.HerzogL.Mac IverD. J. (2007). Preventing student disengagement and keeping students on the graduation path in urban middle-grades schools: Early identification and effective interventions. Educational Psychologist, 42, 223-235.
5.
BanksJ. A. (2007). Educating citizens in a multicultural society (2nd ed.). New York, NY: Teachers College Press.
6.
BankstonC. L.ZhouM. (2002). Being well vs. doing well: Self-esteem and school performance among immigrant and nonimmigrant racial and ethnic groups. The International Migration Review, 36, 389-415.
7.
BarrettA. N.BarileJ. P.MalmE. K.WeaverS. R. (2012). English proficiency and peer interethnic relations as predictors of math achievement among Latino and Asian immigrant students. Journal of Adolescence, 35, 1619-1628.
8.
BeachumF. D.McCrayC. R. (2008). Dealing with cultural collision: What pre-service educators should know. In GoodmanG. (Ed.), Educational psychology: An application of critical constructivism (pp. 53-70). New York, NY: Peter Lang.
9.
BennettR. E.GottesmanR. L.RockD. A.CerulloF. (1993). Influence of behavior perceptions and gender on teachers’ judgments of students’ academic skill. Journal of Educational Psychology, 85, 347-356.
10.
BoykinA. W.AlburyA.TylerK. M.HurleyE. A.BaileyC. T.MillerO. A. (2005). Culture-based perceptions of academic achievement among low-income elementary students. Cultural Diversity & Ethnic Minority Psychology, 11, 339-350. doi:10.1037/1099-9809.11.4.339
11.
BoykinA. W.CunninghamR. T. (2001). The effects of movement expressiveness in story content and learning context on the analogical reasoning performance of African American children. The Journal of Negro Education, 70, 72-83.
12.
BoykinA. W.TylerK. M.MillerO. (2005). In search of cultural themes and their expressions in the dynamics of classroom life. Urban Education, 40, 521-549. doi:10.1177/0042085905278179
13.
BoykinA. W.TylerK. M.Watkins-LewisK. M.KizzieK. (2006). Culture in the sanctioned classroom practices of elementary school teachers serving low-income African American students. Journal of Education for Students Placed at Risk, 11, 161-173. doi:10.1207/s15327671espr1102_3
14.
BraceN.KempR.SnelgarR. (2000). SPSS for psychologists: A guide to data analysis using SPSS for windows. Mahwah, NJ: Lawrence Erlbaum.
15.
BraceyG. W. (2000). Bail me out! Handling difficult data and tough questions about public schools. Thousand Oaks, CA: Corwin Press.
16.
CartledgeG.LoeS. A. (2001). Cultural diversity and social skill instruction. Exceptionality, 9, 33-46.
17.
CazdenC. B.JohnP.HymesD. (Eds.). (1972). Functions of language in the classroom. New York, NY: Teachers College Press.
18.
CholewaB.West-OlatunjiC. (2008). Exploring the relationship among cultural discontinuity, psychological distress, and academic outcomes with low-income, culturally diverse students. Professional School Counseling, 12(1), 54-61.
19.
ClarkM. A.PonjuanL.OrrockJ.WilsonT.FloresG. (2013). Support and barriers for Latino male students’ educational pursuits: Perceptions of counselors and administrators. Journal of Counseling & Development, 91, 458-466. doi:10.1002/j.1556-6676.2013.00118.x
20.
CohenJ. (1988). Statistical power analysis for the behavioral sciences (2nd ed.). Mahwah, NJ: Lawrence Erlbaum.
ConchasG. Q. (2001). Structuring failure and success: Understanding the variability in Latino school engagement. Harvard Educational Review, 71, 475-504.
23.
ConstantineM. G.SueD. W. (2006). Factors contributing to optimal functioning in people of color in the United States. Counseling Psychologist, 34, 228-244. doi:10.1177/0011000005281318
24.
CooperC. R.CooperR. G.AzmitiaM.ChaviraG.GullattY. (2002). Bridging multiple worlds: How African American and Latino youth in academic outreach programs navigate math pathways to college. Applied Developmental Science, 6, 73-87.
25.
CooperM. A. (2009). Dreams deferred? The relationship between early and later postsecondary educational aspirations among racial/ethnic groups. Educational Policy, 23, 615-650.
26.
CronkB. C. (2010). How to use PASW statistics: A step-by-step guide to analysis and interpretation (6th ed.). Glendale, CA: Pyrczak.
27.
CupitoA. M.SteinG. L.GonzalezL. M. (2015). Familial cultural values, depressive symptoms, school belonging and grades in Latino adolescents: Does gender matter?Journal of Child and Family Studies, 24, 1638-1649. doi:10.1007/s10826-014-9967-7
28.
DelpitL. (2006). Other people’s children: Cultural conflict in the classroom. New York, NY: The New Press.
29.
DesmondM.López-TurleyR. N. (2009). The role of familism in explaining the Hispanic-White college application gap. Social Problems, 56, 311-334.
30.
DeyhleD. (1995). Navajo youth and Anglo racism: Cultural integrity and resistance. Harvard Educational Review, 65, 403-444.
31.
DurdenT. R. (2007). African centered schooling: Facilitating holistic excellence for Black children. The Negro Educational Review, 58, 23-34.
32.
EndersC. K. (2008, March25). Analysis of missing data. Paper presented at the meeting of the American Educational Research Association, New York, NY.
33.
EsparzaP.SánchezB. (2008). The role of attitudinal familism in academic outcomes: A study of urban, Latino high school seniors. Cultural Diversity & Ethnic Minority Psychology, 14, 193-200. doi:10.1037/1099-9809.14.3.193
34.
FairclothB. S.HammJ. V. (2005). Sense of belonging among high school students representing four ethnic groups. Journal of Youth and Adolescence, 34, 293-309. doi:10.1007/s10964-005-5752-7
35.
FosterM.LewisJ.OnafoworaL. (2003). Anthropology, culture, and research on teaching and learning: Applying what we have learned to improve practice. Teachers College Record, 105, 261-277.
36.
GarrettM. T.Bellon-HarnM. L.Torres-RiveraE.GarrettJ. T.RobertsL. C. (2003). Open hands, open hearts: Working with Native youth in the schools. Intervention in School and Clinic, 38, 225-235.
GlassG. V.RudA. G. (2012). The struggle between individualism and communitarianism: The pressure of population, prejudice, and the purse. Review of Research in Education, 36, 95-112. doi:10.3102/0091732X11422863
39.
GoldenbergC.GallimoreR.ReeseL.GarnierH. (2001). Cause or effect? A longitudinal study of immigrant Latino parents’ aspirations and expectations, and their children’s school performance. American Educational Research Journal, 38, 547-582.
40.
GoldringR.GrayL.BittermanA. (2013). Characteristics of public and private elementary and secondary school teachers in the United States: Results from the 2011–12 Schools and Staffing Survey (NCES 2013-314). Washington, DC: U.S. Department of Education, National Center for Education Statistics. Retrieved from http://nces.ed.gov/pubsearch
41.
GonzalezK. P.StonerC.JovelJ. E. (2003). Examining the role of social capital in access to college for Latinas: Toward a college opportunity framework. Journal of Hispanic Higher Education, 2, 146-170. doi:10.1177/1538192702250620
42.
González-PrendesA. A.HindoC.PardoY. (2011). Cultural values integration in cognitive-behavioral therapy for a Latino with depression. Clinical Case Studies, 10, 376-394. doi:10.1177/1534650111427075
43.
GreenfieldP. M.FloresA.DavisH.SalimkhanG. (2008). What happens when parents and nannies come from different cultures? Comparing the caregiving belief systems of nannies and their employers. Journal of Applied Developmental Psychology, 29, 326-336. doi:10.1016/j.appdev.2008.04.002
44.
GreenfieldP. M.KellerH.FuligniA.MaynardA. (2003). Cultural pathways through universal development. Annual Review of Psychology, 54, 461-490. doi:10.1146/annurev.psych.54.101601.145221
45.
GreenfieldP. M.QuirozB. (2013). Context and culture in the socialization and development of personal achievement values: Comparing Latino immigrant families, European American families, and elementary school teachers. Journal of Applied Developmental Psychology, 34, 108-118. doi:10.1016/j.appdev.2012.11.002
46.
Guilamo-RamosV.DittusP.JaccardJ.JohanssonM.BourisA.AcostiN. (2007). Parenting practices among Dominican and Puerto Rican mothers. Social Work, 52, 17-30.
47.
GutiérrezK. D.RogoffB. (2003). Cultural ways of learning: Individual traits or repertoires of practice. Educational Researcher, 32(5), 19-25. doi:10.3102/0013189X032005019
48.
HalgunsethL. C.IspaJ. M.RudyD. (2006). Parental control in Latino families: An integrated review of the literature. Child Development, 77, 1282-1297.
49.
HamrickF. A.StageF. K. (2004). College predisposition at high-minority enrollment, low-income schools. The Review of Higher Education, 27, 151-168.
50.
HannonB. (2015). Hispanics’ SAT scores: The influences of level of parental education, performance-avoidance goals, and knowledge about learning. Hispanic Journal of Behavioral Sciences, 37, 204-222. doi:10.1177/0739986315573249
51.
Hauser-CramP.SirinS. R.StipekD. (2003). When teachers’ and parents’ values differ: Teachers’ ratings of academic competence in children from low-income families. Journal of Educational Psychology, 95, 813-820. doi:10.1037/0022-0663.95.4.813
52.
HudleyC.DaoudA. M. (2008). Cultures in contrast: Understanding the influence of school culture on student engagement. In HudleyC.GottfriedA. E. (Eds.), Academic motivation and the culture of school in childhood and adolescence (pp. 187-220). New York, NY: Oxford University Press.
53.
HuertaJ.WattK. M.ReyesP. (2013). An examination of AVID graduates’ college preparation and postsecondary progress: Community college versus 4-year university students. Journal of Hispanic Higher Education, 12, 86-101. doi:10.1177/1538192712467204
54.
KearneyJ. F.FletcherM.Dobrenov-MajorM. (2011). Nonaligned worlds of home and school: A case study of second-generation Samoan children. Journal of Family Studies, 17, 146-156.
55.
KobrinJ. L.CamaraW. J.MilewskiG. B. (2002, January). Students with discrepant high school GPA and SAT I scores (Research Notes, RN-15). New York, NY: The College Board.
56.
KomarrajuM.CokleyK. O. (2008). Horizontal and vertical dimensions of individualism-collectivism: A comparison of African Americans and European Americans. Cultural Diversity & Ethnic Minority Psychology, 14, 336-343. doi:10.1037/1099-9809.14.4.336
57.
Ladson-BillingsG. (1995a). But that’s just good teaching! The case for culturally relevant pedagogy. Theory Into Practice, 34, 159-165.
58.
Ladson-BillingsG. (1995b). Toward a theory of culturally relevant pedagogy. American Educational Research Journal, 32, 465-491.
59.
La RocheM. J.ShribergD. (2004). High stakes exams and Latino students: Toward a culturally sensitive education for Latino children in the United States. Journal of Educational and Psychological Consultation, 15, 205-223.
LopezS. G.GarzaR. T.Gonzalez-BlanksA. G. (2012). Preventing smoking among Hispanic preadolescents: Program orientation, participant individualism-collectivism, and acculturation. Hispanic Journal of Behavioral Sciences, 34, 323-339. doi:10.1177/0739986311435901
62.
LoseyK. M. (1995). Mexican American students and classroom interaction: An overview and critique. Review of Educational Research, 65, 283-318.
63.
LovelaceS.WheelerT. R. (2006). Cultural discontinuity between home and school language socialization patterns: Implications for teachers. Education, 127, 303-309.
64.
LuiP. P. (2015). Intergenerational cultural conflict, mental health, and educational outcomes among Asian and Latino/a Americans: Qualitative and meta-analytic review. Psychological Bulletin, 141, 404-446.
65.
MarryshowD.HurleyE. A.AllenB. A.TylerK. M.BoykinA. W. (2005). Impact of learning orientation on African American children’s attitudes toward high-achieving peers. American Journal of Psychology, 118, 603-618.
66.
MarsigliaF. F.ParsaiM.KulisS. (2009). Effects of familism and family cohesion on problem behaviors among adolescents in Mexican immigrant families in the Southwest United States. Journal of Ethnic & Cultural Diversity in Social Work, 18, 203-220. doi:10.1080/153132000903070965
67.
MartínezJ. E.StecherB.BorkoH. (2009). Classroom assessment practices, teacher judgments, and student achievement in mathematics: Evidence from the ECLS. Educational Assessment, 14, 78-102. doi:10.1080/10627190903039429
68.
McHaleS. M.UpdegraffK. A.KimJ.CanslerE. (2009). Cultural orientations, daily activities, and adjustment in Mexican American youth. Journal of Youth and Adolescence, 38, 627-641.
69.
Mejía-ArauzR.RogoffB.DexterA.NajafiB. (2007). Cultural variation in children’s social organization. Child Development, 78, 1001-1014.
70.
MertlerC. A.VannattaR. A. (2010). Advanced and multivariate statistical methods: Practical application and interpretation (4th ed.). Glendale, CA: Pyrczak.
71.
MorelliG. A.RogoffB.OppenheimD.GoldsmithD. (1992). Cultural variation in infants’ sleeping arrangements: Questions of independence. Developmental Psychology, 28, 604-613.
72.
MosierC. E.RogoffB. (2003). Privileged treatment of toddlers: Cultural aspects of individual choice and responsibility. Developmental Psychology, 39, 1047-1060. doi:10.1037/0012-1649.39.6.1047
73.
MosquedaE.MaldonadoS. I. (2013). The effects of English language proficiency and curricular pathways: Latina/os’ mathematics achievement in secondary schools. Equity & Excellence in Education, 46, 202-219. doi:10.1080/10665684.2013.780647
O’ConnorN. (2009). Hispanic origin, socio-economic status, and community college enrollment. The Journal of Higher Education, 80, 121-145.
78.
OgbuJ. U. (1982). Cultural discontinuities and schooling. Anthropology & Education Quarterly, 13, 290-307.
79.
OrnsteinA. C.LevineD. U.GutekG. L. (2011). Foundations of education (11th ed.). Belmont, CA: Wadsworth.
80.
OysermanD.CoonH. M.KemmelmeierM. (2002). Rethinking individualism and collectivism: Evaluation of theoretical assumptions and meta-analyses. Psychological Bulletin, 128, 3-72. doi:10.1037//0033-2909.128.1.3
81.
PadillaA. M.GonzalezR. (2001). Academic performance of immigrant and U.S.-born Mexican heritage students: Effects of schooling in Mexico and bilingual/English language instruction. American Educational Research Journal, 38, 727-742.
82.
PedullaJ. J.AirasianP. W.MadausG. F. (1980). Do teacher ratings and standardized test results of students yield the same information?American Educational Research Journal, 17, 303-307.
83.
PlunkettS. W.Bámaca-GómezM. Y. (2003). The relationship between parenting, acculturation, and adolescent academics in Mexican-origin immigrant families in Los Angeles. Hispanic Journal of Behavioral Sciences, 25, 222-239. doi:10.1177/0739986303253629
84.
PlunkettS. W.BehnkeA. O.SandsT.ChoiB. Y. (2009). Adolescents’ reports of parental engagement and academic achievement in immigrant families. Journal of Youth and Adolescence, 38, 257-268. doi:10.1007/s10964-008-9325-4
85.
PortesP. R. (2001). Social and psychological factors in the academic achievement of children of immigrants: A cultural history puzzle. American Educational Research Journal, 38, 461-492.
86.
RodriguezJ. L. (2002). Family environment and achievement among three generations of Mexican American high school students. Applied Developmental Science, 6, 88-94.
87.
RodriguezN.MiraC. B.PaezN. D.MyersH. F. (2007). Exploring the complexities of familism and acculturation: Central constructs for people of Mexican origin. American Journal of Community Psychology, 39, 61-77. doi:10.1007/s10464-007-9090-7
88.
RogoffB. (2003). The cultural nature of human development. New York, NY: Oxford University Press.
89.
RogoffB.MistryJ.GöncüA.MosierC. (1993). Guided participation in cultural activity by toddlers and caregivers. Monographs of the Society for Research in Child Development, 58(8), i-179.
90.
Rothstein-FischC.TrumbullE.GarciaS. G. (2009). Making the implicit explicit: Supporting teachers to bridge cultures. Early Childhood Research Quarterly, 24, 474-486.
91.
RudolphB.Cornelius-WhiteC.QuintanaF. (2005). Filial responsibility among Mexican American college students: A pilot investigation and comparison. Journal of Hispanic Higher Education, 4, 64-78. doi:10.1177/1538192704271667
92.
SadlerD. R. (2009). Grade integrity and the representation of academic achievement. Studies in Higher Education, 34, 807-826. doi:10.1080/03075070802706553
93.
SantiagoC. D.GudiñoO. G.BawejaS.NadeemE. (2014). Academic achievement among immigrant and U.S.-born Latino adolescents: Associations with cultural, family, and acculturation factors. Journal of Community Psychology, 42, 735-747.
94.
SchwartzS. J. (2007). The applicability of familism to diverse ethnic groups: A preliminary study. The Journal of Social Psychology, 147, 101-118.
95.
SchwartzS. J.WatermanA. S.Umaña-TaylorA. J.LeeR. M.KimS. y.VazsonyiA. T.. . . WilliamsM. K. (2013). Acculturation and well-being among college students from immigrant families. Journal of Clinical Psychology, 69, 298-318. doi:10.1002/jclp.21847
96.
SciarraD. T.WhitsonM. L. (2007). Predictive factors in postsecondary educational attainment among Latinos. Professional School Counseling, 10, 307-316.
97.
SegalE. A.GerdesK. E.MullinsJ.WagamanM. A.AndroffA. (2011). Social empathy attitudes: Do Latino students have more?Journal of Human Behavior in the Social Environment, 21, 438-454. doi:10.1080/10911359.2011.566445
98.
ShoreyH. S.CowanG.SullivanM. P. (2002). Predicting perceptions of discrimination among Hispanics and Anglos. Hispanic Journal of Behavioral Sciences, 24(3), 3-22. doi:10.1177/0739986302024001001
99.
SingelisT. M. (1994). The measurement of independent and interdependent self-construals. Personality and Social Psychology Bulletin, 20, 580-591. doi:10.1177/0146167294205014
100.
SlavinR. E. (1982). What Research Says to the Teacher. Cooperative learning: Student teams. Washington, DC: National Education Association of the United States.
101.
SolórzanoD. G.YossoT. J. (2002). Critical race methodology: Counter-storytelling as an analytical framework for education research. Qualitative Inquiry, 8, 23-44.
102.
Souto-ManningM. (2009). Educating Latino children: International perspectives and values in early education. Childhood Education, 85, 182-186.
103.
StakeJ. E. (2002). Making the grade: Some principles of comparative grading. 52 Journal of Legal Education 583, 4, 585-618.
104.
StarkP.NoelA. M. (2015). Trends in high school dropout and completion rates in the United States: 1972-2012 (NCES 2015-015). Washington, DC: U.S. Department of Education, National Center for Education Statistics. Retrieved from http://nces.ed.gov/pubsearch
105.
StewardR. J.HillM. F.NeilD. M.PritchettT.WabaunseeA. (2008). What does GPA in an urban high school actually mean?Educational Considerations, 36(1), 11-16.
106.
StokesT.SomersP. (2009). Who enrolls in two-year colleges? A national study of price response. Journal of Student Financial Aid, 39(1), 4-18.
107.
StumpfH.StanleyJ. C. (2002). Group data on high school grade point averages and scores on academic aptitude tests as predictors of institutional graduation rates. Educational and Psychological Measurement, 62, 1042-1052. doi:10.1177/001316440223809
108.
SueD. W. (2004, November). Whiteness and ethnocentric monoculturalism: Making the “invisible” visible. American Psychologist, 59, 761-769.
109.
TanG. (2001). “I want my teachers to like me”: Multiculturalism and school dropout rates among Mexican Americans. Equity & Excellence in Education, 34(2), 35-42. doi:10.1080/1066568010340206
110.
TanG. (2002). The need for multiculturalism in the classroom as perceived by Mexican American schoolchildren. Multicultural Education, 9(3), 21-24.
TheoharisG. (2007). Social justice educational leaders and resistance: Toward a theory of social justice leadership. Educational Administration Quarterly, 43, 221-258.
113.
TheoharisG. (2008). Woven in deeply identity and leadership of urban social justice principals. Education and Urban Society, 41, 3-25.
114.
ThompsonG. L.WarrenS.CarterL. (2004). It’s not my fault: Predicting high school teachers who blame parents and students for students’ low achievement. The High School Journal, 87(3), 5-14.
115.
TillmanL. C. (2002). Culturally sensitive research approaches: An African-American perspective. Educational Researcher, 31(7), 3-12. doi: 10.3102/0013189X031009003
116.
TylerK. M.BoykinA. W.BoelterC. M.DillihuntM. L. (2005). Examining mainstream and Afro-cultural value socialization in African American households. Journal of Black Psychology, 31, 291-311. doi:10.1177/0095798405278199
117.
TylerK. M.BoykinA. W.WaltonT. R. (2006). Cultural considerations in teachers’ perceptions of student classroom behavior and achievement. Teaching and Teacher Education, 22, 998-1005. doi:10.1016/j.tate.2006.04.017
118.
TylerK. M.UqdahA. L.DillihuntM. L.Beatty-HazelbakerR.ConnerT.GadsonN.. . . StevensR. (2008). Cultural discontinuity: Toward a quantitative investigation of a major hypothesis in education. Educational Researcher, 37, 280-297. doi:10.3102/0013189X08321459
119.
Umaña-TaylorA. D.UpdegraffK. A.Gonzales-BackenM. A. (2011). Mexican-origin adolescent mothers’ stressors and psychosocial functioning: Examining ethnic identity affirmation and familism as moderators. Journal of Youth and Adolescence, 40, 140-157. doi:10.1007/s10964-010-9511-z
120.
ValenzuelaA.DornbuschS. M. (1994). Familism and social capital in the academic achievement of Mexican origin and Anglo adolescents. Social Science Quarterly, 75, 18-36.
121.
Vasquez-SalgadoY.GreenfieldP., M.Burgos-CienfuegosR. (2015). Exploring home-school value conflicts: Implications for academic achievement and well-being among Latino first-generation college students. Journal of Adolescent Research, 30, 271-305. doi:10.1177/0743558414561297
122.
Vélez-IbáñezC. G. (1996). Border visions: Mexican cultures of the Southwest United States. Tucson: The University of Arizona Press.
123.
WarikooN.CarterP. (2009). Cultural explanations for racial and ethnic stratification in academic achievement: A call for a new and improved theory. Review of Educational Research, 79, 366-394.
124.
WarzonK. B.Ginsburg-BlockM. (2008). Cultural continuity between home and school as a predictor of student motivation: What we know, what we need to learn, and implications for practice. In HudleyC.GottfriedA. E. (Eds.), Academic motivation and the culture of school in childhood and adolescence (pp. 121-145). New York, NY: Oxford University Press.
125.
WildhagenT. (2009). Why does cultural capital matter for high school academic performance? An empirical assessment of teacher-selection and self-selection mechanisms as explanations of the cultural capital effect. The Sociological Quarterly, 50, 173-200.
126.
ZarateM. E.PinedaC. G. (2014). Effects of elementary school home language, immigrant generation, language classification, and school’s English learner concentration on Latinos’ high school completion. Teachers College Record, 116, 1-37.
127.
ZwickR.SklarJ. (2005). Predicting college grades and degree completion using high school grades and SAT scores: The role of student ethnicity and first language. American Educational Research Journal, 42, 439-464.
