Erlendur worked as a research associate at the
American Society for Psychical Research from 1972 to 1974. In 1973 he became a faculty member at the
University of Iceland, where he advanced to professor of psychology in 1989. He retired from teaching in 1999. in particular in supernatural figures such as
huldufólk and
draugar, research built on in the 2000s by
Terry Gunnell; in a 1978 survey he examined the prevalence of belief in Iceland in precognitive dreams; and in a study published in 1985 he found proportionally more reports of encounters with dead people from Iceland than any other European country. He has also contributed to the cross-cultural
standardization of
psychological testing instruments. In addition, in 1982–83 he worked with
Ian Stevenson at the
University of Virginia on
reincarnation research. He spent a year with
J. B. Rhine in Durham, North Carolina. He has coauthored studies of the personality, abilities and psychological characteristics of children who claim memories of a previous life in
Sri Lanka, comparing them with paired children who did not claim such memories. Erlendur received the
Outstanding Career Award from the
Parapsychological Association and the Myers Memorial Award from the
Society for Psychical Research. His 2005 book
Látnir í heimi lifenda (English translation
The Departed Among the Living, 2012) describes surveys and follow-up investigations he conducted into alleged apparitions and related phenomena in Iceland.
Deathbed phenomena In 1971, Erlendur co-authored with
Karlis Osis the book
At the Hour of Death, describing research into deathbed visions in the United States and India that they interpreted as more consistent with the hypothesis of a transition experience than with the "extinction hypothesis". Their data collection methods drew criticism from the scientific community. According to
Terence Hines: Osis and Haraldsson's (1977) study was based on replies received from ten thousand questionnaires sent to doctors and nurses in the United States and India. Only 6.4 percent were returned. Since it was the doctors and nurses who were giving the reports, not the patients who had, presumably, actually had the experience, the reports were secondhand. This means they had passed through two highly fallible and constructive human memory systems (the doctor's or nurse's and the actual patient's) before reaching Osis and Haraldsson. The psychologist
James Alcock criticized the study as it was
anecdotal and described their results as "unreliable and uninterpretable."
Paul Kurtz also criticized the study, saying all of the data was second-hand and influenced by cultural expectations.
Sathya Sai Baba Erlendur with
Karlis Osis investigated the alleged
miracles and
paranormal powers of
Sathya Sai Baba in the 1980s. He wrote the book
Miracles Are My Visiting Cards (1988), also published as
Modern Miracles (1997) and republished in 2013 as
Modern Miracles: The Story of Sathya Sai Baba: A Modern Day Prophet which documented his investigation and research. The book has been described as a "generally sympathetic treatment of Sai Baba". In the late 1980s the
philosopher of religion David C. Lane wrote that Erlendur's book
Modern Miracles "approaches the alleged miracles of Sai Baba with a critical, but open outlook" and recommended it as "the most balanced book ever written" on the subject. Sathya Sai Baba refused to submit to testing in a controlled environment, so Erlendur instead interviewed witnesses. Nevertheless, he debunked some of his alleged miracles, such as the resurrection of Walter Cowan. Philosopher
Paul Edwards noted how Erlendur did not come to any definite conclusion about the authenticity of Baba's miracles but regarded fraud as unlikely. Psychologist Janak Pandey wrote that Erlendur was impressed by Baba but could not get him to produce any paranormal phenomena under controlled conditions. The parapsychologist Martin Johnson claimed Erlendur had published some "remarkably naïve eyewitness-accounts of the Indian saint's feats" and was surprised Erlendur was taking the possibility that Baba was not a fraud. Daniel Bassuk, professor of religious studies at the
University of South Florida wrote "Haraldsson and Osis conclude that they were unable to detect any evidence of fraud, and were led to regard Satya Sai Baba's materializations as 'possibly paranormal'." The Indian skeptic
Basava Premanand criticized the book as a collection of anecdotes rather than an objective scientific report, and the humanist
Babu Gogineni found it credulous, saying Erlendur was "more predisposed to believe than to investigate", concluding: "The only lesson one can learn from Erlendur Haraldsson is how not to study the paranormal events." ==Retirement==