A design and evaluation framework for visual programming codes. - Christos Douligeris; Ioannis Argyriou; Anastasios Ladias; Theodoros Karvounidis (EDUCON, 2017)

Kinds of loops implemented with messages in Scratch and the SOLO Taxonomy. - Theodoros Karvounidis; Anastasios Ladias; Demitrios Ladias; Christos Douligeris (SEEDA-CECNSM, 2019)

Categorization of requests detecting in Scratch using the SOLO taxonomy. - Anastasios Ladias; Demitrios Ladias; Theodoros Karvounidis (SEEDA-CECNSM, 2019)

Composition of programming structures into scenarios and their matching with the SOLO levels. - Demitrios Ladias; Theodoros Karvounidis; Anastasios Ladias (SEEDA-CECNSM, 2020)

Assessment of command structuring in Scratch programming using the SOLO taxonomy. - Anastasios Ladias; Theodoros Karvounidis; Christos Douligeris (EDUCON, 2022)

Assessment of data carriers with the SOLO taxonomy in Scratch. - Theodoros Karvounidis; Anastasios Ladias; Christos Douligeris (SEEDA-CECNSM, 2022)

Assessment of data types and of the ways they are used in Scratch using the SOLO taxonomy. - Theodoros Karvounidis; Anastasios Ladias; Christos Douligeris (EDUCON, 2023)

Assessment of Transparent Data Representation in Scratch via the SOLO Taxonomy. - Anastasios Ladias; Theodoros Karvounidis; Christos Douligeris (EDUCON, 2024)