...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Educational and Psychological Measurement >A brief report on how impossible scores affect smoothing and equating
【24h】

A brief report on how impossible scores affect smoothing and equating

机译：关于不可能得分如何影响平滑和均衡的简要报告

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Equating under the external anchor design is frequently conducted using scaled scores on the anchor test. However, scaled scores often lead to the unique problem of creating zero frequencies in the score distribution because there may not always be a one-to-one correspondence between raw and scaled scores. For example, raw scores of 17 and 18 may correspond to scaled scores of 150 and 153, thereby creating zero frequencies for scaled scores of 151 and 152. These gaps in the frequency distribution may adversely affect smoothing and equating. This study examines the effect of these zero frequencies on log-linear smoothing of score distributions and final equating results. Results suggest that although smoothing is significantly affected by the presence of these zero frequencies, the impact on the actual equating results is minimal.
机译：外部锚设计下的平价通常使用锚测试中的标定分数进行。但是，缩放分数通常会导致在分数分布中创建零频率的独特问题，因为原始分数和缩放分数之间可能并不总是一一对应。例如，原始分数17和18可能对应于150和153的缩放分数，从而为151和152的缩放分数创建零频率。频率分布中的这些差距可能会对平滑和均衡产生不利影响。这项研究检查了这些零频率对分数分布和最终均衡结果的对数线性平滑的影响。结果表明，尽管平滑率受零频率的影响很大，但对实际均衡结果的影响却很小。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号