IN: Crowded House are a rock band formed in Melbourne, Australia, in 1985. The founding members were New Zealander Neil Finn (vocalist, guitarist, primary songwriter) and Australians Paul Hester (drums) and Nick Seymour (bass). Later band members included Neil Finn's brother, Tim Finn, and Americans Mark Hart and Matt Sherrod. Originally active from 1985 to 1996, the band had consistent commercial and critical success in Australia and New Zealand and international chart success in two phases, beginning with their self-titled debut album, which reached number twelve on the US Album Chart in 1987 and provided the Top Ten hits

In 2006 Neil Finn asked Nick Seymour to play bass on his third solo album. Seymour agreed and the two joined up with producer and multi-instrumentalist Ethan Johns to begin recording. As the recording sessions progressed it was decided that the album would be issued under the Crowded House band name, rather than as a Neil Finn solo album. In January 2007, the group publicly announced their reformation and on 23 February, after 20 days of auditions, former Beck drummer Matt Sherrod joined Finn, Seymour and Mark Hart to complete the new line up. As Sherrod and Hart had not participated in the initial sessions, four new tracks were recorded with producer Steve Lillywhite including the album's first single "Don't Stop Now". On 17 March 2007 the band played a live show at their rehearsal studio in front of around fifty fans, friends and family. The performance was streamed live as a webcast. The two-and-a-half-hour set included some new tracks, including "Silent House" co-written by Finn with the Dixie Chicks. A concert onboard The Thekla, moored in Bristol, followed on 19 March. Crowded House played at the Marquee Theatre in Tempe, Arizona on 26 April as a warm-up for their appearance at the Coachella Festival on 29 April in Indio, California. They also played at the Australian Live Earth concert in Sydney on 7 July. The next day, Finn and Seymour were interviewed on Rove Live and the band, with Hart and Sherrod, performed "Don't Stop Now" to promote the new album, which was titled Time on Earth. The single was a minor hit in Australia and the UK. The album was released worldwide in June and July. It topped the album chart in New Zealand and made number 2 in Australia and number 3 in the UK. On 6 December 2008 Crowded House played the Homebake festival in Sydney, with warm up gigs at small venues in Hobart, Melbourne and Sydney. For these shows the band were augmented by multi-instrumentalist Don McGlashan and Neil's younger son, Elroy Finn, on guitar. On 14 March 2009 the band joined Neil's older son, Liam Finn, on stage for three songs at the Sound Relief concert in Melbourne.
QUESTION: WAs it well received?
IN: Raymond Bernard Cattell (20 March 1905 - 2 February 1998) was a British and American psychologist, known for his psychometric research into intrapersonal psychological structure. His work also explored the basic dimensions of personality and temperament, the range of cognitive abilities, the dynamic dimensions of motivation and emotion, the clinical dimensions of abnormal personality, patterns of group syntality and social behavior, applications of personality research to psychotherapy and learning theory, predictors of creativity and achievement, and many multivariate research methods including the refinement of factor analytic methods for exploring and measuring these domains. Cattell authored, co-authored, or edited almost 60 scholarly books, more than 500 research articles, and over 30 standardized psychometric tests, questionnaires, and rating scales. According to a widely cited ranking, Cattell was the 16th most eminent, 7th most cited in the scientific journal literature, and among the most productive, but controversial psychologists of the 20th century.

Cattell noted that in the hard sciences such as chemistry, physics, astronomy, as well as in medical science, unsubstantiated theories were historically widespread until new instruments were developed to improve scientific observation and measurement. In the 1920s, Cattell worked with Charles Spearman who was developing the new statistical technique of factor analysis in his effort to understand the basic dimensions and structure of human abilities. Factor analysis became a powerful tool to help uncover the basic dimensions underlying a confusing array of surface variables within a particular domain. Factor analysis was built upon the earlier development of the correlation coefficient, which provides a numerical estimate of the degree to which variables are "co-related". For example, if "frequency of exercise" and "blood pressure level" were measured on a large group of people, then intercorrelating these two variables would provide a quantitative estimate of the degree to which "exercise" and "blood pressure" are directly related to each other. Factor analysis performs complex calculations on the correlation coefficients among the variables within a particular domain (such as cognitive ability or personality trait constructs) to determine the basic, unitary factors underlying the particular domain. While working at the University of London with Spearman exploring the number and nature of human abilities, Cattell postulated that factor analysis could be applied to other areas beyond the domain of abilities. In particular, Cattell was interested in exploring the basic taxonomic dimensions and structure of human personality. He believed that if exploratory factor analysis were applied to a wide range of measures of interpersonal functioning, the basic dimensions within the domain of social behavior could be identified. Thus, factor analysis could be used to discover the fundamental dimensions underlying the large number of surface behaviors, thereby facilitating more effective research. As noted above, Cattell made many important innovative contributions to factor analytic methodology, including the Scree Test to estimate the optimal number of factors to extract, the "Procrustes" oblique rotation strategy, the Coefficient of Profile Similarity, P-technique factor analysis, dR-technique factor analysis, the Taxonome program, as well the Rotoplot program for attaining maximum simple structure solutions. In addition, many eminent researchers received their grounding in factor analytic methodology under the guidance of Cattell, including Richard Gorsuch, an authority on exploratory factor analytic methods.
QUESTION:
What are the purpose of the unitary factors?