Ordinality judgment on number and letter sequences yields reverse distance effects and correlates with academic achievement

역 거리 효과란, 비교 과제에서 자극 간의 거리가 가까울수록 더 좋은 수행을 보이는 현상을 말한다. 본 연구에서는 숫자, 한글 자음/모음, 영어 알파벳을 사용한 순서 판단 시 역 거리 효과가 나타나는지를 확인하고, 각 과제의 수행과 수학, 국어, 영어 성취도 간의 관계를 분석하였다. 연구 결과, 모든 순서 판단 과제에서 역 거리 효과가 나타나 숫자와 글자의 순서 정보가 유사하게 처리됨을 확인하였다. 참가자들은 숫자 과제를 한글 과제보다, 한글 과제를 영어 과제보다 더 우수하게 수행하였다. 이는 숫자와 비교할 때 글자 순서 판단은 상대적으로 익숙하지 않은 과제이기 때문인 것으로 해석할 수 있다. 또한, 이 결과를 통해 외국어와 비교할 때 모국어 글자 판단이 더 수월하였음을 알 수 있다. 회귀분석 결과, 숫자, 한글, 알파벳 순서 판단 과제의 수행이 수학, 국어, 영어 성취도를 유의하게 예측하였다. 이러한 결과는 숫자와 글자 순서 판단 과제의 수행이 수학만이 아닌 언어 영역의 학업 성취도와도 밀접한 관계가 있음을 시사한다. 본 연구는 순서 판단 과제의 수행과 언어 영역 성취도 간의 관계를 살펴본 최초의 연구로서, 순서 판단 능력이 수학 및 수학 외 언어 영역의 성취와도 밀접한 관계가 있음을 시사한다.

keywords: 순서 표상, 역 거리 효과, 수학 성취도, 학업 성취도, 언어 성취도, ordinality, reverse distance effect, math achievement, academic achievement, language achievement

Abstract

The present study examined whether a reverse distance effect (RDE) is consistently observed for ordinality judgment using numbers, Korean letters and the alphabet. RDE refers to a phenomenon in which better performance is observed for judgment on stimuli that are closer to each other. We examined whether performance on these tasks are correlated with academic achievement in math, Korean and English domains. Indeed, RDEs were observed from all three tasks. This result reveals that the order of numbers and letters are similarly processed and is consistent with the results of previous studies reporting RDE. Performance was better for order judgment of numbers compared to Korean letters, and for Korean letters compared to the alphabet. This reveals that ordinality judgment of letters are less efficient compared to numbers and that ordinality judgment in the native language is more efficient compared to a foreign language. Linear regression analysis revealed that ordinality judgment performance using numbers and Korean letters significantly predicted math achievement. All three ordinality judgment performance predicted achievement in Korean and English domains. These results suggest that ordinality judgment of numbers and letters is related to achievement in not only math but also language. The present study is the first to examine the relationship between ordinality judgment performance and language achievement. We hereby propose that ordinal representations may be more domain-general than previously conceived, going beyond their presupposed numerical nature.

keywords: 순서 표상, 역 거리 효과, 수학 성취도, 학업 성취도, 언어 성취도, ordinality, reverse distance effect, math achievement, academic achievement, language achievement

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논문 상세

Vol.30 No.3

숫자와 글자 순서 판단 수행의 역 거리 효과 및 학업 성취도와의 관계 분석

Ordinality judgment on number and letter sequences yields reverse distance effects and correlates with academic achievement

초록

Abstract

참고문헌

한국심리학회지: 인지 및 생물