Reliability generalization of the life satisfaction index

The purpose of the present study as to examine score reliability for a measure of life satisfaction (Life Satisfaction Index [LSI]), This reliability generalization comprised a search of 157 journal articles. which resulted in the inclusion tit a total of 34 samples Results revealed an average reliability of 79 (SD = .10, median = .79). Bivariate correlational analyses repealed no relationships between score reliability and various sample characteristics, including sample size, number of items, mean age, standard deviation of age, proportion female. mean LSI score. and standard deviation LSI scores. No significant differences in score reliability were found by language tit administration or sample type. These analyses provide evidence for adequate reliability of LSI scores across a variety of sample characteristics, however, they must be interpreted with caution, given the small sample size. In addition. this study documents the poor reporting of psychometric properties in the LSI literature.