title: Equivalence and practice effect of alternate forms for Malay version of Auditory Verbal Learning Test (MAVLT).
abstract: This study aims to develop two alternate forms for Malay version of Auditory Verbal Learning Test (MAVLT) and to determine their equivalency and practice effect. Ninety healthy volunteers were subjected to the following neuropsychological tests at baseline, and at one month interval according to their assigned group; group 1 (MAVLT - MAVLT), group 2 (MAVLT - Alternate Form 1 - Alternate Form 1), and group 3 (MAVLT - Alternate Form 2 - Alternate Form 2). There were no significant difference in the mean score of all the trials at baseline among the three groups, and most of the mean score of trials between MAVLT and Alternate Form 1, and between MAVLT and Alternate Form 2. There was significant improvement in the mean score of each trial when the same form was used repeatedly at the interval of one month. However, there was no significant improvement in the mean score of each trial when the Alternate Form 2 was used during repeated neuropsychological testing. The MAVLT is a reliable instrument for repeated neuropsychological testing as long as alternate forms are used. The Alternate Form 2 showed better equivalency to MAVLT and less practice effects.
authors.affiliation: Department of Psychiatry and Mental Health, Hospital Tengku Ampuan Afzan, 25100 Kuantan, Pahang, Malaysia.
authors.forename: Norulsuhada
authors.initials: N
authors.lastname: Munjir
authors.affiliation: Department of Psychiatry, School of Medical Sciences, Universiti Sains Malaysia, 16150 Kubang Kerian, Malaysia.
authors.forename: Zahiruddin
authors.initials: Z
authors.lastname: Othman
authors.affiliation: Department of Physiology, School of Medical Sciences, Universiti Sains Malaysia, 16150 Kubang Kerian, Malaysia.
authors.forename: Rahimah
authors.initials: R
authors.lastname: Zakaria
authors.affiliation: Department of Physiology, School of Medical Sciences, Universiti Sains Malaysia, 16150 Kubang Kerian, Malaysia.
authors.forename: Nazlahshaniza
authors.initials: N
authors.lastname: Shafin
authors.affiliation: Nursing Program, School of Health Sciences, Universiti Sains Malaysia, 16150 Kubang Kerian, Malaysia.
authors.forename: Noor Aini
authors.initials: NA
authors.lastname: Hussain
authors.affiliation: Nursing Program, School of Health Sciences, Universiti Sains Malaysia, 16150 Kubang Kerian, Malaysia.
authors.forename: Anisah Mat
authors.initials: AM
authors.lastname: Desa
authors.affiliation: Department of Physiology, School of Medical Sciences, Universiti Sains Malaysia, 16150 Kubang Kerian, Malaysia.
authors.forename: Asma Hayati
authors.initials: AH
authors.lastname: Ahmad
keywords: MAVLT; alternate forms; equivalency; neuropsychological testing; practice effect