User profiles for Andrew Ho

Andrew Ho

- Verified email at gse.harvard.edu - Cited by 6467

Andrew Tri Van Ho

- Verified email at u-paris.fr - Cited by 1815

The problem with “proficiency”: Limitations of statistics and policy under No Child Left Behind

AD Ho - Educational researcher, 2008 - journals.sagepub.com
The Percentage of Proficient Students (PPS) has become a ubiquitous statistic under the No
Child Left Behind Act. This focus on proficiency has statistical and substantive costs. The …

Descriptive statistics for modern test score distributions: Skewness, kurtosis, discreteness, and ceiling effects

AD Ho, CC Yu - Educational and psychological …, 2015 - journals.sagepub.com
Many statistical analyses benefit from the assumption that unconditional or conditional
distributions are continuous and normal. More than 50 years ago in this journal, Lord and Cook …

Studying learning in the worldwide classroom research into edX's first MOOC.

…, DE Pritchard, J DeBoer, GS Stump, AD Ho… - Research & Practice in …, 2013 - ERIC
"Circuits and Electronics" (6.002x), which began in March 2012, was the first MOOC developed
by edX, the consortium led by MIT and Harvard. Over 155,000 students initially registered …

The Reliability of Classroom Observations by School Personnel. Research Paper. MET Project.

AD Ho, TJ Kane - Bill & Melinda Gates Foundation, 2013 - ERIC
For many teachers, the classroom observation has been the only opportunity to receive direct
feedback from another school professional. As such, it is an indispensable part of every …

Role of the Mouse ank Gene in Control of Tissue Calcification and Arthritis

AM Ho, MD Johnson, DM Kingsley - Science, 2000 - science.org
Mutation at the mouse progressive ankylosis(ank) locus causes a generalized, progressive
form of arthritis accompanied by mineral deposition, formation of bony outgrowths, and joint …

HarvardX and MITx: Two years of open online courses fall 2012-summer 2014

A Ho, I Chuang, J Reich, C Coleman… - Available at SSRN …, 2015 - papers.ssrn.com
What happens when well-known universities offer online courses, assessments, and
certificates of completion for free? Early descriptions of Massive Open Online Courses (MOOCs) …

VEGF improves, whereas sFlt1 inhibits, BMP2‐induced bone formation and bone healing through modulation of angiogenesis

H Peng, A Usas, A Olshanski, AM Ho… - Journal of Bone and …, 2005 - academic.oup.com
We studied the interaction between VEGF and BMP2 during bone formation and bone healing.
Results indicate that VEGF antagonist inhibited BMP2‐elicited bone formation, whereas …

Changing “course” reconceptualizing educational variables for massive open online courses

J DeBoer, AD Ho, GS Stump… - Educational …, 2014 - journals.sagepub.com
In massive open online courses (MOOCs), low barriers to registration attract large numbers
of students with diverse interests and backgrounds, and student use of course content is …

[BOOK][B] Set covering algorithms using cutting planes, heuristics, and subgradient optimization: a computational study

E Balas, A Ho - 1980 - Springer
We report on the implementation and computational testing of several versions of a set
covering algorithm, based on the family of cutting planes from conditional bounds discussed in …

Immunosuppressive drugs prevent a rapid dephosphorylation of transcription factor NFAT1 in stimulated immune cells.

KT Shaw, AM Ho, A Raghavan, J Kim… - Proceedings of the …, 1995 - National Acad Sciences
The immunosuppressive drugs cyclosporin A and FK506 interfere with the inducible
transcription of cytokine genes in T cells and in other immune cells, in part by preventing the …