It is important to explore score reliability in virtually all studies, because tests are not reliable. The present paper explains the most frequently used reliability estimate, coefficient alpha, so that the coefficient's conceptual underpinnings will be understood. Researchers need to understand score reliability because of the possible impact reliability has on the interpretation of research results. There are several common misconceptions about the basic ideas of score reliability.
We use heterogeneity in the timing of television’s introduction to different local
markets to identify the effect of preschool television exposure on standardized
test scores during adolescence. Our preferred point estimate indicates that an
additional year of preschool television exposure raises average adolescent test
scores by about 0.02 standard deviations. We are able to reject negative effects
larger than about 0.03 standard deviations per year of television exposure.
This paper proposes a new class-based m e t h o d to estimate the strength of association in word co-occurrence for the purpose of structural disambiguation. To deal with sparseness of data, we use a conceptual dictionary as the source for acquiring upper classes of the words related in t h e co-occurrence, and then use t-scores to determine a pair of classes to be employed for calculating the strength of association. We have applied our m e t h o d to determining dependency relations in Japanese and prepositional phrase attachments in English. ...
Purpose of the TSE test
The primary purpose of the Test of Spoken
) is to measure the ability of
nonnative speakers of English to communicate
orally in a North American English context. The
TSE test is delivered in a semidirect format,
which maintains reliability and validity while
controlling for the subjective variables associated
with direct interviewing. Because it is a test of
general oral language ability, the TSE test is
appropriate for examinees regardless of native
language, type of educational training, or field of
Journalists are highly dependent upon individuals and organizations (including government
officials, agencies and nongovernmental organizations) for a steady and reliable flow of
newsworthy information. This flow of information makes news production more predictable,
efficient and profitable. When this flow is blocked (for example, when traditional news
sources are unavailable for comment or do not respond within the journalist’s deadline),
journalists are more likely to seek other sources, which may be less authoritative, accurate,
responsible or reliable....
Tuyển tập các báo cáo nghiên cứu về bệnh học thý y được đăng trên tạp chí Acta Veterinaria Scandinavica cung cấp cho các bạn kiến thức về bệnh thú yđề tài: Reliability of an injury scoring system for horses...
Tuyển tập các báo cáo nghiên cứu về y học được đăng trên tạp chí y học quốc tế cung cấp cho các bạn kiến thức về ngành y đề tài: Inter-rater reliability of the Full Outline of UnResponsiveness score and the Glasgow Coma Scale in critically ill patients: a prospective observational study...
Tuyển tập các báo cáo nghiên cứu về y học được đăng trên tạp chí y học Critical Care giúp cho các bạn có thêm kiến thức về ngành y học đề tài: The validity, reliability and normative scores of the parent, teacher and self report versions of the Strengths and Difficulties Questionnaire in China...
Tuyển tập các báo cáo nghiên cứu về y học được đăng trên tạp chí y học Wertheim cung cấp cho các bạn kiến thức về ngành y đề tài: Logistic Organ Dysfunction Score (LODS): A reliable postoperative risk management score also in cardiac surgical patients?
Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành y học dành cho các bạn tham khảo đề tài: Reliability of 95% confidence interval revealed by expected quality-of-life scores: an example of nasopharyngeal carcinoma patients after radiotherapy using EORTC QLQ-C 30
Tuyển tập các báo cáo nghiên cứu về hóa học được đăng trên tạp chí hóa học đề tài : Reliability of 95% confidence interval revealed by expected quality-of-life scores: an example of nasopharyngeal carcinoma patients after radiotherapy using EORTC QLQ-C 30
A reliable indicator of candidate proficiency
in critical thinking and analytical writing
Graduate schools are now able to receive valuable information that can
be factored into admissions decisions: applicants’ scores on the
GRE Writing Assessment. Since October 1999, examinees have had
the opportunity to demonstrate, in a controlled testing situation, the
kinds of high-level thinking and writing skills generally recognized
as essential for success in many graduate programs.
Bài giảng Phân tích nhân tố Explore Factor Analysis (EFA) và kiểm định Cronbach Alpha nhằm trình bày các nội dung chính: định nghĩa, điều kiện ứng dụng, nghiên cứu các nhân tố, số các nhân tố phải tách ra, phép quay (rotation), điểm số nhân tố (Factorial Scores), độ tin cậy và hiệu lực (Reliability and Validity).
While patterns of improvement can be observed as greater or lesser according to the background
characteristics of students in this study, statistical analysis has meant that no generalisation regarding
the kind of student most likely to improve can be reliably made. It is nevertheless interesting to
consider the characteristics of each of the individuals who did show the greatest increase in their
IELTS Test results.
Of the 40 students who participated in this study, only eight managed to improve by one IELTS band
in their Overall score.
The TOEFL test measures how well students use English, not just their knowledge of the language. Because it is a valid and reliable test with unbiased, objective scoring, the TOEFL test confirms that a student has the English language skills necessary to succeed in an academic setting.
PLANNING AN INTERNATIONAL AUDIT: AN EMPIRICAL INVESTIGATION OF INTERNAL AUDITOR JUDGEMENT
With nearly as long a pedigree is the idea that these family background effects may
operate above the individual level. The school-level association between average student
background and average performance is typically much stronger than is the same association
at the individual level.
What would science be without measurement, and what would social
science be without social measurement? Social measurement belongs
to the widely accepted and fruitful stream of the empirical-analytic
approach. Statistics and research methodology play a central role, and
it is difficult to ascertain precisely when it all started in the social
sciences. An important subfield of social measurement is the quantification
of human behavior—that is, using measurement instruments
of which educational and psychological tests are the most prominent
The use of individuals’ credit histories to predict the risk of future loss has become a
common practice among automobile and homeowners insurers. The practice has proven to
be controversial not only because of concerns about how reliably credit scores may predict
risk. Many industry professionals, policymakers, and consumer groups have expressed
concern that the practice may pose a significant barrier to economically vulnerable segments
of the population in obtaining affordable automobile and homeowners coverage.