Introduction to analysing large scale assessment data (PISA/TIMSS/PIRLS) using WesVar 5.1

Scope / Abstract

Sampling framework is a pertinent facet of research, and provides an understanding of (complex) sample designs. The results of analyses conducted with statistical software applications, which are based on the assumption of simple random sampling, could be misleading especially when the sample design incorporates stratification, nesting/clustering and multistage sampling. Missing data and the assignment of weights at various levels (for example, student, teacher/school, and country), if not scrutinised carefully, may confound analyses, associated inferences, and lead to erroneous conclusions. This workshop introduces complex sample designs, related statistical techniques and to address the concerns listed above.

The hands-on activities will utilise WesVar 5.1 (Westat, Inc.) for the following:

1. Examine sampling framework, sample designs, missing data, and weights.
2. Setup of WesVar data file (moving data and variables from SPSS/SAS).
3. Compute descriptive statistics.
4. Calculate mean score, standard errors and associated statistics.
5. Undertake t-test and interpretation of results.
6. Estimate strength of association (correlation coefficients).
7. Undertake regression analysis and reporting (APA).
8. Understand basic mediation and moderation effects through WesVar.
9. If you are using or planning to use international large scale assessment dataset (PISA, TIMSS, PIRLS, TALIS), this workshop will provide an understanding of methods and techniques used for their reports.

Biography

2014: Bachelor of Education(S.Pd) in Physics Education State University of Makassar, Makassar, Indonesia
2015 - 2016: Language Teacher (Indonesian)
Quantum Khatulistiwa Foundation (with International Organisation for Migrants): For refugee and asylum seeker in Unaccompanied Migrants Children’s Shelter, Makassar, Indonesia.
2013 - 2014: Academic Writing Organization Tutor
Athirah Senior High School (Private), South Sulawesi, Indonesia
2012 - 2014: Secretary, Students Research Institute of UNM, Makassar

Assistant: A/Prof Sivakumar Alagumalai

Software

Register and download Westat Inc. WesVar 5.1.