Simplified Lot Quality Assurance Sampling Evaluation of Access and Coverage (SLEAC) Tools
Select sampling clusters using systematic sampling
LQAS classifier
Produce misclassification probabilities
Simulate survey data of covered/cases and non-covered/non-cases given ...
plot helper function for lqas_simulate_test() function
print helper function for lqas_get_class_prob() function
Simplified Lot Quality Assurance Sampling Evaluation of Access and Cov...
Calculate case-finding effectiveness
Calculate r_out
Calculate treatment coverage
Calculate post-stratification weights
Check coverage data for post-stratification weighted estimation
Check coverage distribution
Check p value
Check population data for post-stratification weighted estimation
Weighted post-stratification estimation of coverage over several servi...
Calculate the binomial coefficient n-choose-k
Get low, moderate, and high probabilities per proportion
Calculate cumulative hypergeometric probabilities
Calculate hypergeometric probability
Calculate estimated number of cases for a condition affecting children...
Calculate number of clusters to sample to reach target sample size
Calculate sample size and decision rule for a specified LQAS sampling ...
In the recent past, measurement of coverage has been mainly through two-stage cluster sampled surveys either as part of a nutrition assessment or through a specific coverage survey known as Centric Systematic Area Sampling (CSAS). However, such methods are resource intensive and often only used for final programme evaluation meaning results arrive too late for programme adaptation. SLEAC, which stands for Simplified Lot Quality Assurance Sampling Evaluation of Access and Coverage, is a low resource method designed specifically to address this limitation and is used regularly for monitoring, planning and importantly, timely improvement to programme quality, both for agency and Ministry of Health (MoH) led programmes. SLEAC is designed to complement the Semi-quantitative Evaluation of Access and Coverage (SQUEAC) method. This package provides functions for use in conducting a SLEAC assessment.
Useful links