| Water {CrossCarry} | R Documentation |
Water student data of crossover design
Description
A pilot study to investigate the impact of providing supplementary drinking water on the cognitive performance of pupils of two school grades (5 and 6) in water-scarce schools in rural Mali. 47 students were assigned to take the control treatment (normal conditions) on the first day and receive the treatment (controlled hydration) on the second day. 60 received the treatments in reverse (Hydration the first day and control the second day). One part of this test assesses visual attention. This test assesses visual attention. Pupils were given a grid containing target letters randomly dispersed among non-target letters and were given one minute to cross out as many target letters as possible. Scores were calculated by subtracting the number of non-target letters identified from the number of target letters identified; the maximum test score was 38.
Usage
Water
Format
A data frame with 214 rows and 10 columns:
- ID
The unique identifier of each of the students
- Age
The age in years of each of the students
- LCS
Letter Cancel incorrect (raw score)
- LCC
Letter Cancel correct (raw score)
- LCI
Letter Cancel score (LCC-LCI)
- sex
f=female, 1=male
- school
school indicator A or B
- Treatment
Condition indicator 0=Control 1=Water
- Period
date of visit
- Carry_Agua
Carry indicator 0=First period, 1=Water in the first period, -1 = Control in the first period
Source
<https://journals.plos.org/plosone/article/authors?id=10.1371/journal.pone.0210568>