importance of validity and reliability in assessment pdf

This version of SSS has properconstruct validity. There is a significant correlation between SS% and the first question of SSS (α=0.01, r= 0.67) and also there is a significant correlation between avoidance sub-test of SSS and avoidance subtest of PSI(α= 0.05, r=0.75)but there was not a significant correlation between the locus of control sub-test of SSS and LBC scale (α= 0.15). Findings the results based on the Cronbach's alpha (α=0/92) showed that are valid. The findings were analyzed bydescribtive statics, Cronbach's alpha and pearson correlation. Then 20 adult who has stuttering complete modified questionnaire with (PSI: perception of stuttering inventory), (locus of control behavior scale: LCB) and calculating the percentage of stuttered speech samples recorded in order to assess the concurrent validity.

Method and Materials With the implementation of a pilot study and semi-structured interviews with17 adult who has stuttering formal validity and internal consistency of the scale (Subjective stuttering scale: SSS) was investigated. The aim of the present research was Investigation of reliability and validity of the Farsi version of Subjective Stuttering Scale Questionaire. Subjective stuttering scale (SSS) investigate stuttering in three views such as severity, avoidance and locus of control in a unique protocol that can show the need to assessment of extra aspects of stuttering. Preliminary results indicate that the ASC holds promise as a viable curriculum-based measure that early childhood educators can use for monitoring preschoolers' progress in language comprehension.Abstract Bachground and aim: Subjective Scales are the tools for investigation of a disorder in view of the person who has the disorder.

Test-retest reliability and internal consistency also indicated high levels of reliability for this new tool however, alternate form reliability results suggest further work is needed. Concurrent validity with two established language measures revealed correlations ranging from 0.67 to 0.81. Fidelity of administration and scoring reliability averaged over 90%. In all, 237 preschoolers, ages 3 to 5 years old, participated in this study. Following an overview of the iterative development process and pilot studies, this article presents preliminary evidence of the fidelity of administration, reliability of scoring, alternate form reliability, and validity of the ASC. The Assessment of Story Comprehension (ASC) features brief, child-relevant stories and a series of literal and inferential questions with a focus on causal and predictive inference skills surrounding the main story grammar components and a novel vocabulary word. Despite research demonstrating the importance of language comprehension to later reading abilities, curriculum-based measures to assess language comprehension abilities in preschoolers remain lacking.

Importance of validity and reliability in assessment pdf