---
data_dictionary: balance1.txt

description:  
  The study examined balance for subjects on two
  different floor conditions (normal or foam) and
  with three different levels of sight (eyes open,
  eyes closed, or closed dome). Each of these
  conditions was replicated twice. The outcome 
  measure was an ordinal variable on a scale from
  1 to 4.

additional_description:  
  http://www.statsci.org/data/oz/ctsib.html
  
note:  
  The dataset shows how to display repeated measures
  data using the wide format. An alternate 
  dataset, balance2.txt, displays the data using the
  tall format.

copyright:  
  unknown
  
repository:
  Australasian Data and Story Library
 
repository_url: 
  http://www.statsci.org/data/oz/
  
download_url:
  http://www.statsci.org/data/oz/ctsibrm.txt

source: >
  Bryanton MA, Bilodeau M. The Effect 
  of Vision and Surface Compliance on 
  Balance in Untrained and Strength
  Athletes. J Mot Behav. 2019, 51(1),
  75-82. doi: 10.1080/00222895.2017.1423019. 

source_url:
  https://doi.org/10.1080/00222895.2017.1423019

format: 
  tab-delimited
  
varnames: 
  first row of data

missing_value_code: 
  not needed

size:
  rows: 40
  columns: 17

vars:
  Subject:
    scale: positive integers
    range: 1 to 40

  Sex:
    values: male or female

  Age:
    scale: non-negative integers
    unit: years

  Height:
    unit: cm

  Weight:
    unit: kg
    
  NO1:
    label: Balance on normal surface with eyes open, first replicate
    scale: ordinal (lower is better)
    range: 1 to 4

  NO2:
    label: Balance on normal surface with eyes open, second replicate
    scale: ordinal (lower is better)
    range: 1 to 4
  
  NC1:
    label: Balance on normal surface with eyes closed, first replicate
    scale: ordinal (lower is better)
    range: 1 to 4

  NC2:
  
  ND1:
    label: Balance on normal surface with dome, first replicate
    scale: ordinal (lower is better)
    range: 1 to 4
    
  ND2:
    label: Balance on normal surface with dome, second replicate
    scale: ordinal (lower is better)
    range: 1 to 4

  FO1:
    label: Balance on foam surface with eyes open, first replicate
    scale: ordinal (lower is better)
    range: 1 to 4
    
  FO2:
    label: Balance on foam surface with eyes open, second replicate
    scale: ordinal (lower is better)
    range: 1 to 4
  
  FC1:
    label: Balance on foam surface with eyes closed, first replicate
    scale: ordinal (lower is better)
    range: 1 to 4

  FC2:
    label: Balance on foam surface with eyes closed, second replicate
    scale: ordinal (lower is better)
    range: 1 to 4
  
  FD1:
    label: Balance on foam surface with dome, first replicate
    scale: ordinal (lower is better)
    range: 1 to 4

  FD2:
    label: Balance on foam surface with dome, second replicate
    scale: ordinal (lower is better)
    range: 1 to 4
---