Validity Reliability Fairness Reliability and Validity Jigsaw Activity

Validity Reliability Fairness • Reliability and Validity • Jigsaw Activity • • Self –assessment Revising assignment # 2

Validity Reliability Fairness Assessment of visual perception: What do you see?

e b i r c s e d o t d e k s a e n r e u h t c i W the p • Child of two limits her description to objects/subjects in the picture • Older children describe processes and relations William Stern’s theory: Children first perceive/recognize objects and subjects. At a later stage of development, children start recognizing actions and relations

e b i r c s e d o t d e k s a e n r e u h t c i W the p Children of two • Describe objects and subjects • Reproduce the processes in the picture “what Stern regarded as a characteristic of the child’s perceptual skills proved to be a product of the limitation of her language development” (Vygotsky)

Validity Reliability Fairness Describing the picture with language. • Reliable Test • NOT valid test of visual perception

Validity Reliability Fairness • Reliable Test because … • Children will always perform the same and receive the same result • Children of two will always describe objects/subjects and not processes

Validity Reliability Fairness • Not Valid because… • It claims to be measuring/assessing perception • It is actually assessing language competence

Ji y t i v i t c A w gsa Group 1: • Norm Reference • Fairness Group 2: • Self Reference • Validity Group 3: • Criteria Reference • Reliability Group 4: • Self Reference • Reliability Discuss the following (8 mins): • • • Definitions of the concepts Guiding questions for your practice Examples

In every group we should have at least… One Person from Group 1 One Person from Group 2 One Person from Group 3 One person from Group 4 Non Verbal Communication Prepare a five minute presentation on all the concepts (10 mins)

Ji y t i v i t c A w gsa Group 1: • Norm Reference • Fairness Group 2: • Self Reference • Validity Group 3: • Criteria Reference • Reliability Group 4: • Self Reference • Reliability Discuss the following: • • • Definitions of the concepts Guiding questions for your practice Examples

t n e m s s e s As 2 # g s of A s 1. Present your experience with assessment to your group members (10 mins) 2. Does your written description lend itself to analysis in terms of: validity, reliability, fairness ? 3. Fill the self-assessment form and read the assessment rubric 4. Revise your assignment based on the selfassessment form and on the group discussion.