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Showing 1 to 12 of 186 entries
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Intraclass correlation values for planning group-randomized trials in education

Educational trials

Hedges LV, Hedberg EC.
GSID: NZxG2f4zYrgJ
LV Hedges, EC Hedberg - Educational Evaluation and …, 2007 - journals.sagepub.com

Experiments that assign intact groups to treatment conditions are increasingly common in social research. In educational research, the groups assigned are often schools. The design of group-randomized experiments requires knowledge of the intraclass correlation structure to …

Randomised trials in education in the USA

Educational trials

Hedges LV, Schauer J.
GSID: VggF9rQW9yQJ
LV Hedges, J Schauer - Educational research, 2018 - Taylor & Francis

… Laboratory studies in educational psychology continued in American colleges and universities, but field trials did not. Because relatively few trials were carried out by personnel in colleges and universities, training in trial methodology languished. Even basic training in...

Trends in gender differences in academic achievement from 1960 to 1994: An analysis of differences in mean, variance, and extreme scores

out of school settings

Hedges LV.
GSID: uIsd4qj4VmkJ
A Nowell, LV Hedges - Sex roles, 1998 - Springer

Gender differences in academic achievement have been studied extensively. While it is generally agreed that females have a slight advantage on average in verbal abilities and …

After-school programs for high school students: An evaluation of After School Matters

after-school interventions

Hedges LV, Stawicki JA.
GSID: XRxFi4W0nLoJ
BJ Hirsch, LV Hedges, JA Stawicki, MA Mekinda - 2011 - issuelab.org

… We also thank After School Matters for providing a planning grant in the development stage of the study. … This chapter begins with a review of the literature on prior after-school program evaluations. We also discuss the design...

Erratum: Robust variance estimation in meta-regression with dependent effect size estimates.

Research synthesis methods

Hedges LV, Tipton E, Johnson MC.
PMID: 26061381
Res Synth Methods. 2010 Apr;1(2):164-5. doi: 10.1002/jrsm.17. Epub 2010 Nov 17.

No abstract available.

Robust variance estimation in meta-regression with dependent effect size estimates.

Research synthesis methods

Hedges LV, Tipton E, Johnson MC.
PMID: 26056092
Res Synth Methods. 2010 Jan;1(1):39-65. doi: 10.1002/jrsm.5. Epub 2010 Mar 05.

Conventional meta-analytic techniques rely on the assumption that effect size estimates from different studies are independent and have sampling distributions with known conditional variances. The independence assumption is violated when studies produce several estimates based on the same individuals...

NATURAL FORMATION OF IRIS HYBRIDS: EXPERIMENTAL EVIDENCE ON THE ESTABLISHMENT OF HYBRID ZONES.

Evolution; international journal of organic evolution

Hodges SA, Burke JM, Arnold ML.
PMID: 28565679
Evolution. 1996 Dec;50(6):2504-2509. doi: 10.1111/j.1558-5646.1996.tb03636.x.

No abstract available.

EFFECTS OF DIFFERENTIAL POLLEN-TUBE GROWTH ON HYBRIDIZATION IN THE LOUISIANA IRISES.

Evolution; international journal of organic evolution

Carney SE, Hodges SA, Arnold ML.
PMID: 28565590
Evolution. 1996 Oct;50(5):1871-1878. doi: 10.1111/j.1558-5646.1996.tb03574.x.

To elucidate the importance of hybridization in evolution, it is necessary to understand the processes that affect hybridization frequency in nature. Here we focus on postpollination, prefertilization isolating mechanisms using two hybridizing species of Louisiana iris as a study...

Self-assembly at a nonequilibrium critical point.

Physical review letters

Whitelam S, Hedges LO, Schmit JD.
PMID: 24785052
Phys Rev Lett. 2014 Apr 18;112(15):155504. doi: 10.1103/PhysRevLett.112.155504. Epub 2014 Apr 17.

We use analytic theory and computer simulation to study patterns formed during the growth of two-component assemblies in two and three dimensions. We show that these patterns undergo a nonequilibrium phase transition, at a particular growth rate, between mixed...

Making a mark .

BMJ (Clinical research ed.)

Hodges A.
PMID: 10406784
BMJ. 1999 Jul 17;319(7203):201. doi: 10.1136/bmj.319.7203.201.

No abstract available.

Curriculum survey: health policy content in graduate nursing programs.

NLN publications

Dunn BH, Hodges LC, Collins JB.
PMID: 3633079
NLN Publ. 1986 Jan;(15):43-53.

No abstract available.

Ethics of cochlear implantation in young children.

Otolaryngology and head and neck surgery

Balkany T, Hodges AV, Goodman K.
PMID: 10547502
Otolaryngol Head Neck Surg (1979). 1999 Nov;121(5):673-5. doi: 10.1016/S0194-5998(99)70089-6.

No abstract available.

Showing 1 to 12 of 186 entries