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Topic: Reliability psychometric

	Psychometrics - Wikipédia
		Psychometrics is the science of measuring "psychological" aspects of a person such as knowledge, skills, abilities, or personality.
		A reliable measure may be consistent without necessarily being valid,.e.g., a measurement instrument like a broken ruler may always under-measure a quantity by the same amount each time (consistently), but the resulting quantity is still wrong, that is, invalid.
		Internal consistency may be assessed by correlating performance on two halves of a test (split-half reliability); the value of the Pearson product-moment correlation coefficient is adjusted with the rumus prediksi Spearman-Brown to correspond to the correlation between two full-length tests.
	su.wikipedia.org /wiki/Psychometrics (595 words)

	NSSE: National Survey of Student Engagement
		The degree to which an instrument is reliable is an important indicator of an instrument’s psychometric quality.
		The results were similar to the earlier study with the reliability coefficients ranging from 0.69 (level of academic challenge) to 0.74 (enriching educational experiences).
		In 2003, we conducted a stability analysis to measure the strength of the associations between benchmark scores for 214 institutions that participated in the 2002 and 2003 administrations of the survey.
	nsse.iub.edu /html/PsychometricPortfolio_Reliability.cfm (693 words)

	Reliability (statistics) - Wikipedia, the free encyclopedia
		In statistics reliability is the accuracy of the scores of a measure.
		Reliability estimates from one sample might differ from those of a second sample (beyond what might be expected due to sampling variations) if the second sample is drawn from a different population because the true reliability is different in this second population.
		In classical test theory, reliability is defined mathematically as the ratio of the variation of the true score and the variation of the observed score.
	en.wikipedia.org /wiki/Reliability_(psychometric) (532 words)

	LAI 657 Quiz 2 Key
		Reliability refers to the consistency or repeatability or stability of a measuring instrument.
		Alternate-forms reliability (or parallel-forms reliability) -- This is the correlation between the scores on two different forms of the same test administered to the same subjects on different occasions.
		This is a form of internal consistency reliability, and the Spearman-Brown procedure is often used to correct for the length of the halves in comparison to the whole test.
	www.gse.buffalo.edu /FAS/Schroede/classes/LAI657Quiz2Key.html (919 words)

	NSSE 2002 Annual Report
		Reliability is the degree to which a set of items consistently measures the same thing across respondents and institutional settings.
		Another characteristic of a reliable instrument is stability, the degree to which the students respond in similar ways at two different points in time.
		These analyses are based on 3,226 students at 12 institutions in spring, 1999, 12,472 students at 56 institutions in fall 1999, 63,517 students at 276 institutions in spring 2000, 89,917 students at 321 institutions in spring 2001, and 118,355 students at 366 institutions in spring 2002.
	www.indiana.edu /~nsse/2002_annual_report/html/conceptual_psychometric.htm (603 words)

	Team Focus UK - FAQs
		A psychometric test is a standardised method for assessing a mental or psychological attribute such as a skill, an ability or a dimension of personality.
		Firstly you need to know that the test has been developed according to sound psychometric principles and whether there is evidence of its reliability (its ability to give consistent results) and its validity (its ability to assess what it is supposed to assess).
		Reliability is essentially a measure of a test's ability to produce consistent results.
	www.teamfocus.co.uk /faqs.htm (4336 words)

	Tool Kit on Teaching and Assessing Students With Disabilities: Models for Large-Scale Assessment for Students with ...
		Reliable measurement is also a necessary condition for measurement of validity—although it is not the only condition.
		Reliability typically refers to the measurement error that is introduced into the "entire measurement process" (p.
		Reliability is related to measurement error, which "almost always refers to the random component of error" (Feldt and Brennan, 1989, p.
	www.nichcy.org /toolkit/tk_reliability.htm (1143 words)

	How Out-of-Level Testing Affects the Psychometric Quality of Test Scores - NCEO Out-of-Level Testing Report 2
		Psychometric arguments for out-of-level testing are that the scores will be more precise and accurate measures of student ability for those students who would otherwise earn very low scores on the grade level test.
		Reliability is a generic concept that is used as a barometer for the consistency or reproducibility of test scores.
		Reliability provides information about measurement precision for a group of test scores, but it is a poor and often misleading gauge of the precision of a particular score.
	education.umn.edu /NCEO/OnlinePubs/OOLT2.html (8885 words)

	FPA Journal - Insights from Psychology and Psychometrics on Measuring Risk Tolerance
		Psychometrics, a blend of psychology and statistics, is the measurement science for attributes such as risk tolerance.
		In psychometric terms, a valid test is one that measures what it purports to measure and a reliable test is one that does so consistently (with known accuracy).
		But we hope the psychometric principles presented here will help the financial planning profession design better tests, and that all readers will be better able to assess the validity of third-party questionnaires or their own questionnaires they may want to use on their clients.
	www.fpanet.org /journal/articles/2005_Issues/jfp0405-art8.cfm (6349 words)

	validity psychometric advice and resources
		Reliability, validity and psychometric properties of the Greek translation of the zung depression rating scale Reliability, validity and psychometric properties of the Greek translation of the zung depression rating scale...
		Reliability, Validity and Psychometric Properties of the Greek Translation of the Center for Epidemiological Studies...
		Reliability, Validity and Psychometric Properties of the Greek Translation of the Center for Epidemiological Studies-Depression (CES-D) Scale Reliability, Validity and Psychometric Properties of the Greek Translation of the...
	www.careeradvicenetwork.co.uk /psychometric/validity-psychometric.html (1011 words)

	The Reliability and Validity of the Myers-Briggs Type Indicator Instrument - CAPT.org (Site not responding. Last check: 2007-10-19)
		Reliability is how consistently a test measures what it attempts to measure.
		Reliabilities (when scores are treated as continuous scores, as in most other psychological instruments) are as good or better than other personality instruments.
		The reliabilities are quite good across age and ethnic groups, although reliabilities on some scales with some groups may be somewhat lower.
	capt.org /The_MBTI_Instrument/Reliability_and_Validity.cfm (665 words)

	Evidence-Based Rating of Upper-Extremity Motor Function Tests Used for People Following a Stroke (Site not responding. Last check: 2007-10-19)
		In his review, he indicated whether the degree of validity, reliability, and sensitivity of tests was known; which test domains were covered (eg, impairment or specific [focal] disability); and whether the test was composed of a battery of tasks.
		Because of the latter variations, strong psychometric properties of measurements for one population should not be considered supportive for populations with different diagnoses.
		Clinicians and researchers are encouraged to become familiar with the meanings of the different psychometric properties and to decide which are more important for their applications and whether the statistics used in a given study were appropriate.
	www.ptjournal.org /PTJournal/Jan2004/v84n1p62.cfm (5227 words)

	JVIS.COM: Psychometric Properties
		But in counseling decisions the question of the reliability of a single individual’s responses is just as much a matter of concern as is the question of the reliability of the test being completed.
		It is simply an odd-even reliability computed on a single individual across many scales, rather than the more usual odd-even reliability coefficient calculated on a single scale across many individuals.
		Given the distributions of real and of random individual reliability coefficients, one can reasonably assume that individuals on whom a value of less than.20 is obtained can be categorized as probably primarily attributable to careless, non-purposeful, and/or unarticulated responding.
	www.jvis.com /about/psychomet.htm (1068 words)

	reliability psychometric advice and resources
		Reliability is an index of the consistency of measurements of...
		Reliability and psychometric properties of the Greek translation of the state-trait anxiety inventory form Y:...
		Reliability and psychometric properties of the Greek translation of the state-trait anxiety inventory form Y: preliminary data Reliability and psychometric properties of the Greek translation of the state-trait anxiety...
	www.careeradvicenetwork.co.uk /psychometric/reliability-psychometric.html (976 words)

	National Textile Center Year 10 I01-A25 (Site not responding. Last check: 2007-10-19)
		Psychometrics is the science of developing measures for personality, preferences, interests, attitudes, and values using statistical analysis.
		The goal of psychometric development is a measure that can be used, analyzed, and interpreted because it has acceptable levels of reliability and validity.
		CAII Version 1: The first stages of psychometric development—construct specification and scale development—can be considered complete given the research literature on the topic that has accumulated over the last two decades.
	www.ntcresearch.org /current/year10/Projects/I01-A25.htm (1416 words)

	National Survey of Student Engagement
		To facilitate psychometric and other data analyses this item was reverse scored and the reliability coefficient (Cronbach=s alpha) for the 22 CA items was.85 (Table 1).
		What cannot be demonstrated from such psychometric analyses is whether respondents are interpreting the items as intended by the NSSE Design Team and whether students= responses accurately represent their behaviors and perceptions.
		The NSSE project staff is continuing to examine the psychometric properties of the instrument as a whole and on the five benchmarks of effective educational practice featured in NSSE reports.
	www.iub.edu /~nsse/html/psychometric_framework_2002.htm (9607 words)

	Annals of General Psychiatry \| Full text \| Reliability and psychometric properties of the Greek translation of the ...
		However, the calculation of correlation coefficients is not a sufficient method to test reliability and reproducibility of a method and its results, because it is an index of correlation and not an index of agreement [15,17,18].
		The test-retest reliability was excellent, with Pearson coefficient being between 0.75 and 0.98 for individual items and equal to 0.96 for State and 0.98 for Trait (table 2).
		Test-retest reliability over a 2–4 week interval was mixed, with some measures apparently assessing stable, trait-like dimensions of fear and anxiety, and others estimating more state-like clinical features [25].
	www.annals-general-psychiatry.com /content/5/1/2 (4140 words)

	Learning Styles of UK Higher Education Students - Reliability and Replicability of LSQ
		To psychometrically support a bipolar structure of style (see Kirton, 1994) scores on each of the four scales would be highly negatively correlated with one other scale and zero correlated with the remaining two scales.
		Evidence of the internal consistency reliability of the scores produced by the LSQ is presented in Table IV, with alpha coefficients ranging from a low of 0.52 for Pragmatist to a high of 0.73 for Reflector.
		Test-retest reliability over one year is indicated by correlation coefficients of 0.61 to 0.81 for the learning style scales, and a kappa coefficient of 0.71 suggests reasonable overall classification stability.
	www.uwe.ac.uk /bbs/trr/Issue3/Is3-1_4.htm (5238 words)

	Vitae Consulting
		Psychometric assessment covers both ability and personality assessment that may form part of a selection process.
		Psychometric tests are not something to be afraid of, nor have they been created to 'catch some one out'.
		Psychometrics are a valuable tool for both parties to ensure that you are recruited to a job suiting your skills and abilities and to an organisation where you will thrive.
	vitaeconsulting.com /testofchar.html (857 words)

	[No title] (Site not responding. Last check: 2007-10-19)
		Reliability assures that a test is stable, consistent, and precise.
		Reliability is a necessary condition, but it is not sufficient to establish validity.
		Item analysis, reliability coefficients, and factor structure will show whether results are related to previous findings in predictable directions and magnitudes-additional evidence for reliability and content validity.
	www.humsci.auburn.edu /cahs/faculty/brannon/ntcprojects/caii.html (1438 words)

	The psychometric properties of clinical rating scales used in multiple sclerosis -- Sharrack et al. 122 (1): 141 -- ...
		inter- and intra-rater reliabilities (kappa coefficient of 0.14–0.98),
		Inter-rater reliability of the CAMBS was assessed on a sub-group
		Reliability (inter-and intra-rater) of the FS and the EDSS
	brain.oxfordjournals.org /cgi/content/full/122/1/141 (7574 words)

	NSSE: National Survey of Student Engagement
		The psychometric analyses show that the vast majority of items on The College Student Report are valid and reliable and have acceptable kurtosis and skewness indicators.
		In general, the psychometric properties of the NSSE are very good, as the vast majority of items equal or exceed recommended measurement levels.
		In addition, we made improvements to individual items and the overall instrument based on what was learned from focus groups, cognitive testing, and the psychometric analyses on the results from the spring 1999 field test, the inaugural national administration in spring 2000, and the spring 2001 administration.
	nsse.iub.edu /html/psychometric_framework_2002.cfm (9607 words)

	adjudicationreliability
		It can be noted that that this estimated reliability coefficient, having a numerical value of 0.656, should only be thought of only as an ‘upper-limit’ value, as this estimation value was obtained by having to assume that the correlation of ‘true’ PSSPQ scores with the ‘true’ adjudication decisions was perfect and equal to unity.
		Psychometrically speaking, it is almost certain that the actual reliability for the Governmentally made adjudication decision is, in reality, much lower than the 0.656 value presented and discussed here.
		When using well-constructed psychometric tests in applied situations, it is also the rule and not the exception, that the tests possess far superior reliability than do the involved validity criterion measures themselves.
	home.earthlink.net /~lastone2/adjudicationreliability.html (1438 words)

	sharpsir
		However, a psychometric concern is that brevity may result in low reliability and validity in comparison with longer measures.
		This omission may contribute to the low test-retest reliability of the ABS, although another factor is probably the low internal consistency of the subscales.
		Reliability estimates for the SHARP were computed using the Kozma and Stones (1987, 1988) data, new data, and data previously obtained by other researchers.
	flash.lakeheadu.ca /~mstones/SHARPSIR.html (4182 words)

	[No title] (Site not responding. Last check: 2007-10-19)
		A known degree of reliability is crucial to the use of any psychometric test in a setting where its results are used with an individual case.
		If a personality test is a reliable device, then a systematic approach to answering the questions should yield systematic variations in the conclusions derived from an analysis of the test scores.
		That this is a property of reliable tests may be assumed from a knowledge of formal test theory such as any person competent to assess the results of a psychometric test should possess.
	www.holysmoke.org /fpt/ambulance-chasing.doc (4682 words)

	Reliability Article, Reliability Information (Site not responding. Last check: 2007-10-19)
		In engineering in general, reliability is the capacity ofa component or a system of such components to perform as designed.
		In psychometrics, reliability is the precision (i.e.,freedom from error) of the scores of a measure, see Reliability (psychometric).
		In testing, reliability is the extent to which the measurementsresulting from a test are the result of characteristics of those being measured.
	www.anoca.org /perform/conditions/reliability.html (220 words)

	Alpine Testing Solutions - Psychometric Services (Site not responding. Last check: 2007-10-19)
		Reliability is an index of the consistency of measurements of behavior in a specified content, ability, or performance domain.
		The amount of measurement error in scores can be estimated from the test reliability and is generally represented by the standard error of measurement (SEM), The more reliable the test, the smaller the standard error.
		Reliability of a test can be expressed in terms of the components of systematic variance and error variance.
	www.alpinemedia.com /psy_certification_pat2.htm (765 words)

	psspqreliaabilityvalidity (Site not responding. Last check: 2007-10-19)
		The reliability estimations for the involved remaining sub-scales were lower were (with one exception) statistically significant at the.001 level (the exception was significant at the.01 level).
		It can be noted that that the estimated reliability coefficient, having a numerical value of 0.656, can be thought of only as an ‘upper-limit’ value, as this estimation value was obtained by having to assume that the correlation of ‘true’ PSSPQ scores with the ‘true’ adjudication decisions was perfect and equal to unity.
		Psychometrically speaking, it is almost certain that the actual reliability for the Governmentally made adjudication decision is much lower than the 0.656 value presented and discussed here.
	home.earthlink.net /~lastone2/psspqreliabilityvalidity.html (5078 words)

	Psychometric tests & Objective assessments for Recruitment powered by E-testing - Central Test International, The ...
		Psychometric tests are a way of assessing a person’s ability or personality in a measured and structured way.
		Certain Psychometric tests are used by employers in their recruitment process, to help them recruit the right people with the right mix of abilities and personal qualities.
		All psychometric testing results are centralized on the same interface so they can be accessed from anywhere in the world via an Internet connection.
	www.centraltest.co.uk (1719 words)

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