Graphology International Graphoanalysis Society (IGAS) were expelled between 1970 and 1980. Regarding a proposed correlation between gender and handwriting style, a paper by published by James Hartley in 1989 concluded that there was some evidence in support of this hypothesis. Although graphology had some support in the scientific community before the mid-twentieth century, more recent research rejects the validity of graphology as a tool to assess personality and job performance. Today it is considered to be a pseudoscience. Graphology is primarily used as a recruiting tool to screen candidates during the evaluation process. Many studies have been conducted to assess its
What Love Is Made Of extremely positive about "What Love Is Made Of", describing it as "darker than anything" from "On a Mission", while calling it "slinky". The reviewer went on to commend the "irresistibly pouty" chorus. Pitchfork Media's Katherine St. Asaph commented that, in the song, the singer "sound[ed] completely enthralled, by either her lover or the music" and complimented her voice, noting that it seemed "ten times bigger than before". Jordan Sargent of "Spin" magazine called the track "exuberant" and highlighted Katy's vocal performance, which he deemed "typically fantastic", while the team from pop music website Popjustice gave "What Love Is Made Of"