Cohen-Mansfield J, Marx M S, Werner P
Research Institute of the Hebrew Home of Greater Washington.
J Clin Psychol. 1989 Jul;45(4):611-4. doi: 10.1002/1097-4679(198907)45:4<611::aid-jclp2270450417>3.0.co;2-f.
This study examined the effect of the full moon on agitation manifested by nursing home residents (N = 24). Observations of agitation were recorded on a behavioral mapping instrument, and occurrence of the full moon was operationalized in the three ways most commonly cited in the literature. The hypothesis that elderly nursing home residents become increasingly agitated during a full moon was not supported by this study. In all analyses, agitation was observed less often when the full moon was full than during the other three lunar phases, although differences were not statistically significant.
