This study aimed to develop a measure of mental imagery evaluation in preschool children. Three studies were conducted: Study 1 focused on the exploration of the factorial structure, reliability, and Item Response Theory (IRT) discrimination on a sample of children from 4 to 5 years old (N = 100; 50% males and 50% females); Study 2 focused on the confirmation of results about dimensionality on a sample of children from 4 to 7 years old (N = 170; 50% males and 50% females); and Study 3 focused on verifying criterion validity on a sample of children from 4 to 5 years old (N = 70; 47.1% males and 52.9% females). The results confirmed the hypothesis of three reliable factors underlying the scale for the three tasks: Blind Touch, Are Letters and Forms Similar?, and Snail’s Walk. Findings from item parameterization showed a reasonably good discrimination power and low difficulty. Overall, our research has shown that the Mental Imagery Scale for Preschool Children (MIS-PC) is a valuable tool for measuring preschoolers’ mental imagery and encourages its application in the educational context.
Development of the Mental Imagery Scale for Preschool Children using Classical Test Theory and Item Response Theory
Commodari E.;
2020-01-01
Abstract
This study aimed to develop a measure of mental imagery evaluation in preschool children. Three studies were conducted: Study 1 focused on the exploration of the factorial structure, reliability, and Item Response Theory (IRT) discrimination on a sample of children from 4 to 5 years old (N = 100; 50% males and 50% females); Study 2 focused on the confirmation of results about dimensionality on a sample of children from 4 to 7 years old (N = 170; 50% males and 50% females); and Study 3 focused on verifying criterion validity on a sample of children from 4 to 5 years old (N = 70; 47.1% males and 52.9% females). The results confirmed the hypothesis of three reliable factors underlying the scale for the three tasks: Blind Touch, Are Letters and Forms Similar?, and Snail’s Walk. Findings from item parameterization showed a reasonably good discrimination power and low difficulty. Overall, our research has shown that the Mental Imagery Scale for Preschool Children (MIS-PC) is a valuable tool for measuring preschoolers’ mental imagery and encourages its application in the educational context.File | Dimensione | Formato | |
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