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Showing 2 results for Knowledge of Results

Ali Abbas Zadeh, Hamid Reza Taheri, Ali Heirani, Bahram Yousefi,
Volume 2, Issue 3 (8-2012)
Abstract

The aim of this study was examining the effect of knowledge of results presentation (after successful and unsuccessful trials), on learning and error detection capability in force-produce task. Sixty under graduated students (range age 21.6±4), participated in this study and in order to KR presentation, divided in three groups. One of the groups received KR after successful trials, the other groups after unsuccessful trials. The control groups did not receive any KR. All the participants throughout the trials in the acquisition and retention phases were error estimated. The task was to produce the 70℅ of maximum force of their right hands, by gripping a dynamometer. After data collection, the analysis conducted by using ANOVA repeated measurements for acquisition period, and one way ANOVA for retention test. In acquisition, results showed no significant differences between the first and second groups, on performance and error detection capability of force-produce task (P> 0.05). However in retention (no KR), there was significant differences between two groups (P&le0.05), means that the first group which received KR after successful trials was better than the second group as well as control. This pattern of results suggests that if people receive the KR after successful trials than unsuccessful, the better learning and error detection capability will occur.
Ali Abaszadeh, Abdolah Ghasemi, Ali Heirani, Mehdi Nabavi Nik,
Volume 10, Issue 19 (8-2020)
Abstract

Augmented feedback is information that guidance performance to direction correct response and has critical role in motor skill learning. The purpose of this study was to examine the effect of knowledge of results, after good and poor trials on learning and error estimation capability in children.32 elementary students (Mean age 10/4, SD ± 0/9) that all novice and no experience in dart skill participated in this research and randomly divided in two groups (good and poor feedback groups). Participants’ in acquisition phase exercise dart skill at 10 blacks (6-trial) and received knowledge of resulting feedback on 3 attempts in each block, also in all their trials on the acquisition and retention had error estimation. Multiplex Analysis of variance test (2*2) with repeated measures, independent t test and Multiple Analysis of variance test used to data analysis (α=0.05). There were significant difference between two groups in performance and error estimation in practice phase (p=0/001). Also, the good feedback group showed learning and error detection capability advantages on a delayed retention test (p=0/001). These results demonstrated that learning and error detection capability are facilitated if feedback is presented after good rather than poor trials.


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