Psychometry II

Presentation

In this course students recognize the importance of evaluating the psychometric properties of
psychological assessment instruments, not only in terms of instrument construction and validation, but also in their
application in the professional context.

Part of this Programme

Psychology

Level of Qualification|Semesters|ECTS

| Semestral | 5

Year | Type of course unit | Language

3 |Mandatory |Português

Code

ULHT35-13886

Recommended complementary curricular units

Pyschometrics I

Prerequisites and co-requisites

n/a

Professional Internship

Não

Syllabus

1. Tests development and construction - Classical Test Theory (CTT)

1.1. First phases in test construction: content validity and facial validity

1.2. Item construction and its analysis (percentage of concordance between judges., CVI, CVR, Cohen's

1.3 Translation and adaptation of instruments: crucial steps and recommendations

2. Psychometric Qualities of Tests: Definition and Application

2.1. Validity

2.1.1 Construct validity (factorial (EFA and CFA), convergent, divergent) Criterion validity (concurrent and predictive).

2.2 Reliability

2.2.1 Internal consistency and temporal stability

3. Item Response Theory (IRT)

3.1. Item Analysis and Scale purification

3.2. Model Parameters. fit indices and Graphing

Objectives

It is intended that students develop their knowledge of the main methods for test development, but also to
be able to reflect critically on the pros and cons of each method, and to develop practical skills to assess
the psychometric properties of psychological tests. Finally, and considering the specificity of the different
areas of application, it is intended that students know the assumptions of psychometric methods in the
application areas of psychological science.

Teaching methodologies and assessment

Lectures rely on expository and demonstrative methods and the assessment methods comprises two
modalities:
1. Continuous evaluation:
a) A written test without consultation midterm exam (55%)
b) Exercises in the classroom focusing on assessment instruments development, and psychometric
proprieties analysis (15%)
c) Written group work (15%).
d) Oral presentation of the written group work (15%).
Both A, b and d allow individual assessment.
2. Final Examination - written final exam with no consultation is based on lectures¿ content and on
classroom exercises. 100%).:
Class attendance is mandatory. Those students with a part-time regime (equivalent to student worker),
an individual written work on psychometric properties of the psychological assessment instruments must
be delivered (15%). As an average grade, the student must achieve a minimum of 10 points (10/20). If
not, the student will be evaluated in the Final Examination mode and must achieve a minimum of 10
points.

References

Baglin, J. (2014). Improving Your Exploratory Factor Analysis for Ordinal Data: A Demonstration Using
FACTOR. Practical Assessment, Research & Evaluation, 19 (5), 2
Coaley, K. (2014). An introduction to psychological assessment and psychometrics (2nd Ed.). Los
Angeles: Sage.
Coutinho, C. (2013). Metodologia de Investigação em Ciências Sociais e Humanas: Teoria e Prática .
Coimbra: Almedina
DeVellis, R.F. (2012). Scale development: Theory and applications (3rd Ed.). Los Angeles: Sage. Furr,
R.M., & Bacharch, V.R. (2014). Psychometrics: An introduction (2nd Ed.). Los Angeles: Sage.
Lacort, M.O. (2014). Psychometrics: Theory schemes (CTT and IRT) and examples of each technique.
Lulu.com.
Nicol, A. A. M., & Pexman, P. M. (2011). Displaying your findings: A practical guide for creating figures,
posters, and presentations. Washington: APA.
Rust, J., & Golombok, S. (2009). Modern Psychometrics: The science of psychological assessment (3rd
Ed.). London: Routledge.

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