Test Length and Validity

Validity and Reliability of Persian Smell Identification Test

Introduction: Smell Identification Tests (SIT) are routinely utilized for the clinical evaluation of olfactory function. Since Iran consists of various ethnic subgroups, the reliability and validity of this test as a national SIT are required to be evaluated across the country.   Materials and Methods: This cross-sectio...

Concurrent validity and reliability of the maximum step length test in older adults.

PURPOSE This study assessed concurrent validity of the Maximum Step Length (MSL) test as a measure of falls risk and balance-impairment for community-dwelling older adults. A secondary purpose was to determine intra- and interrater reliability and standard error of measurement of the MSL test. METHODS Thirty-five community-dwelling adults aged 60 or older provided a 12-month falls history. Fu...

Universal Length and Validity of Special Relativity

We suggest the reexamination of the validity of the Lorentz invariance at the small distance of the order of 10-16 cm in the light of high energy available at CERN and NAL. Using the modified weak interaction Lagrangian with a noncausal form factor we evaluate the muon decay lifetime including the effect of the radiative corrections as a function of the particle energy and characteristic length...

Evaluating Test Validity

Test Length and Cognitive Fatigue

Person and situational determinants of cognitive ability test performance and subjective reactions were examined in the context of tests with different time-on-task requirements. Two hundred thirty-nine first-year university students participated in a within-participant experiment, with completely counterbalanced treatment conditions and test forms. Participants completed three test sessions of...