4.1.2 Interests and attitudes
Circumscribing the constructs of academic interests, attitudes, and values is particularly difficult (Corno et al., 2002).  As noted by Corno et al., values and attitudes are often classified as affective, interests as both motivational and affective, and beliefs as having both cognitive and volitional characteristics.  Furthermore, values and career orientations are often discussed in the context of personality factors. For example, Holland (1973, 1985) developed a theory of personality based on the importance of 6 general career theme orientations (investigative, social, realistic, conventional, artistic, and enterprising). 
In this document, I subscribe to Corno et al.’s (2002) decision to group these diverse domains together.  Although Corno et al. (1996) included general values and career orientations in their aptitude taxonomy, they are dropped from the current taxonomy due to the paucity of evidence in support of their ability to predict academic or occupational outcomes (Cronbach, 1990).