EXECUTIVE SUMMARY REPORT ON DIFFERENTIAL VALIDITY (2012-13)


Differential Validity indicates differential pattern of predictor criterion relation across sub-populations. Current study examined differential validity of computer programming related reasoning abilities. Items of five subtests were constructed earlier to assess five verbal abilities as similarities, anagram, syllogistic reasoning, data sufficiency and coding. In the 2012-13 session aims are to examine (a) psychometric properties of each subtest and to examine (b) differential pattern of reasoning across cross sections of students by sex, age, grade, community, religion, medium of learning. Data were collected from 622 boys and 372 girls of grades 8th to 10th of different communities by religion and caste. Test battery includes 60- items with four or five options.  Test items for lower order reasoning possessed moderate level of difficulty indices ranged from 46.86 to 64.42. And tests for higher order reasoning possessed high difficulty level. Almost 70% of total students performed poor. Item-total correlation coefficients for lower order reasoning tests ranged from 0.70 to 0.90. On the other side, tests for higher order reasoning coefficients ranged from 0.30 to 0.45. Each sub-test has good reliability coefficient. It ranged from 0.47 to 0.90. One percentile norm was prepared for assessing individual differences in reasoning abilities. Correlation coefficient between each sub-test score and subject wise examination results for only one school differentially related. One way ANOVA shows significant mean differences in reasoning abilities by caste, religion, medium of learning, age, grade and gender. 

Acknowledgement 

Prof. Bimal Roy
Director, Indian Statistical Institute
Prof. Prabal Ray Chaudhuri,
Professor-in-charge, Social Sciences Division
Indian Statistical Institute
Prof. Anjali Ghosh,
Head, Psychology Research Unit
Ms. Sumona Datta
Project Linked Person
All the staffs and office bearers of the Psychology Research Unit
All the staffs and office bearers
Social Sciences Division and
Office of the Director

School Education

Commissioner  of School Education,
West Bengal
Dr. Chanda Ray, Director of the SCERT
Dr. Subrata Biswas, Faculty of SCERT.

Dr. K.A. Sadat,
The Secretary, DIET, Hooghly, West Bengal
Dr. Swapna Ghosh,
The  Secretary, DIET, Banipur, North 24 pgs, West Bengal


Participating schools

Kalyani Central Model School,
Kalyani

Udaypur Haradayal Nag Adarsha Vidyalaya Belgharia

Fatellapur High School
Belgharia
Mahesh Sri Ramkrishna Ashram Vidyalaya  Mahesh
Kalyani University Experimental High School Kalyani,
Rishra Anjuman High School
Rishra,
Sarat Kumari Girls’ High School, Shantipur
Shantipur Boys’ high school, Shantipur
Salimia High School, Kamarhati


NGO and Local support

PRISM, Gobardanga
Dhandageria, Debra, Balichak

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