Barleiris

Simple-Questionnaire-Analysis

A questionnaire containing 40+ questions is given to hundreds of people. People are interviewed about their feelings and hobbies with a goal to find the causal relationship between depression and cognitive impairment, where some questions are related to depression, some to cognitive impairment, and others are confounding. In psychological surveys data are often ordinal, containing missing values, This repository provides a few approaches of analyzing the correlation among multiple frames of survey data using R, including redundancy analysis, Inverse Propensity Score Weighting, and Conditioning Copula, which is a method I invented.