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Computational Thinking Assessment – Towards More Vivid Interpretations

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Abstract

Computational thinking (CT) is an important 21st-century skill. This paper aims at more useful CT assessment. Available evaluation instruments are reviewed; two generally accepted CT evaluation tools are selected for a comprehensive CT assessment: the CTt, a performance test, and the CTS, a self-assessment instrument. The sample comprises 202 high school students from German-speaking Switzerland. Concerning the CTt, Rasch-scalability is demonstrated. Utilizing the approach of the PISA studies, proficiency levels are formed that comprise tasks with specific characteristics that students are systematically able to master. This could help teachers to offer individual support to their students. In terms of the CTS, the original version is refined using confirmatory factor and measurement-invariance analysis. A latent profile analysis yielded four profiles, two of which are of particular interest. One profile comprises students with, on the one hand, moderate to high creative thinking ability, cooperativity, and critical thinking skills and, on the other hand, low algorithmic thinking ability. The second remarkable profile consists of students with particularly low cooperativity. Based on these strength and weakness profiles, teachers could offer support tailored to student needs.

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Data availability

Readers who wish to examine the data may contact the corresponding author.

Notes

  1. The German version of the CTt and CTS are available from the authors upon request.

  2. The Rasch model predicts as the probability for a correct answer: exp(proficiency–difficulty) / (1 + exp(proficiency–difficulty)). For instance, a person with a proficiency of 1.5 Logit is expected to solve an item with a difficulty of 1.0 Logit with a probability of 62.2%.

Abbreviations

aBIC:

Adjusted Bayesian information criterion

AIC:

Akaike’s information criterion

BIC:

Bayesian information criterion

BLRT:

Bootstrap likelihood ratio test

CAIC:

Consistent Akaike’s information criterion

CFI:

Comparative fit index

CI:

Confidence interval

CT:

Computational thinking

CTS:

Computational Thinking Scale

CTt:

Computational Thinking Test

DIF:

Differential item functioning

EAP/PV:

Expected a posteriori / plausible values

ICILS:

International Computer and Information Literacy Study

LPA:

Latent profile analysis

LRT:

Andersen’s likelihood ratio test

MANOVA:

Multivariate analysis of variance

MLR:

Maximum likelihood with robust standard errors

PISA:

Programme for International Student Assessment

R2 :

Coefficient of determination

RMSEA:

Root mean square error of approximation

RQ:

Research question

SRMR:

Standardized root mean square residual

TLI:

Tucker-Lewis Index

WLE:

Weighted likelihood estimate

WLSMV:

Diagonally weighted least squares

wMNSQ:

Weighted mean square

YB-χ2 :

Yuan-Bentler corrected χ2

α:

Cronbach’s alpha

ω:

Revell’s omega total

References

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Funding

The first author received a postdoctoral fellowship for carrying out this research from the Basic Research Fund at the University of St.Gallen (no. 1031542).

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Correspondence to Josef Guggemos.

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Conflict of interest

No known conflicts of interest associated with this manuscript.

Ethical standards

The procedures performed in this study follow the standards of the Ethics Committee of the University of St.Gallen.

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Appendices

Appendix 1: Excluded items due to psychometric validations

figure a

Appendix 2: Refined version of CTS

Creativity

cr_3

“I believe that I can solve most of the problems I face if I have a sufficient amount of time and if I show effort.”

 

cr_4

“I believe that I can solve possible problems that may occur when I encounter a new situation.”

 

cr_5

“I trust that I can apply a plan, at the same time as making it, in order to solve a problem.”

Algorithmic thinking

al_3

“I think that I am better able to learn instructions with the help of mathematical symbols and concepts.”

 

al_4

“I can mathematically express the solutions for the problems I face in daily life.”

 

al_5

“I can digitize a mathematical problem expressed verbally.”

Cooperativity

co_1

“I like experiencing cooperative learning together in my group of friends.”

 

co_2

“In cooperative learning, I think that I attain/will attain more successful results because I am working in a group.”

 

co_3

“I like solving problems related to a group project together with my friends in cooperative learning.”

Critical thinking

cr_1

“I am willing to learn challenging things.”

 

cr_2

“I am proud of being able to think with great precision.”

 

cr_3

“I make use of a systematic method while comparing the options at hand and while reaching a decision.”

Problem solving

pr_1

“I have problems in demonstrating the solution to a problem in my mind.” (R)

 

pr_2

“I have difficulties regarding the issue of where and how I should use variables such as X and Y in the solution of a problem.” (R)

 

pr_4

“I cannot apply the solutions I plan respectively and gradually.” (R)

  1. Selection of 15 out of 29 items (Korkmaz et al., 2017, p. 565). Measured on a 7-point rating scale ranging from ‘not true at all’ to ‘entirely true’. R = reverse coding

Appendix 3

figure b

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Guggemos, J., Seufert, S. & Román-González, M. Computational Thinking Assessment – Towards More Vivid Interpretations. Tech Know Learn 28, 539–568 (2023). https://doi.org/10.1007/s10758-021-09587-2

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