RESEARCH IN PHYSICAL MEDICINE AND REHABILITATION .8. PRELIMINARY DATA-ANALYSIS

被引：15

作者：

BUCHNER, DM

FINDLEY, TW

机构：

[1] UNIV MED & DENT NEW JERSEY,NEW JERSEY MED SCH,KESSLER INST REHABIL,PLEASANT VALLEY WAY,W ORANGE,NJ 07052

[2] UNIV WASHINGTON,DEPT HLTH SERV,SEATTLE,WA 98195

[3] UNIV WASHINGTON,DEPT MED,SEATTLE,WA 98195

[4] UNIV WASHINGTON,CTR HLTH PROMOT OLDER ADULTS,SEATTLE,WA 98195

[5] VET ADM MED CTR,NW HLTH SERV RES & DEV FIELD PROGRAM,SEATTLE,WA 98108

[6] UNIV MED & DENT NEW JERSEY,NEW JERSEY MED SCH,DEPT PHYS MED & REHABIL,W ORANGE,NJ

来源：

AMERICAN JOURNAL OF PHYSICAL MEDICINE & REHABILITATION | 1990年 / 69卷 / 03期

关键词：

data; interpretation; physical medicine; rehabilitation; research;

D O I：

10.1097/00002060-199006000-00011

中图分类号：

R49 [康复医学];

学科分类号：

100215 ;

摘要：

This paper describes important aspects of preliminary data analysis to be taken after data are checked for clerical entry errors and before the primary statistical analysis is performed. These include description and graphic display of each variable, recoding cetegorical data, transforming continuous data into another continuous variable and recoding continuous to categorical data. Missing values and outlying data points are identified and several techniques are recommended to minimize mistakes in variable recoding. Related variables measured with different units may be combined by using the z transformation and converted back to one of the original units for ease of interpreatation. Finally, both categorical and continuous variables are checked for reliability by using kappa or the intraclass R.

引用

页码：154 / 169

页数：16

共 12 条

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