Can someone help me with this please

Apsychologist has developed a series of personality inventories and wants to determine if they are valid. one of the scales measures perfectionism, so he asks a colleague for advice on how to establish the validity of this scale. the colleague tells him that if he were to find a sample of people with personality disorder, these people would obtain high scores on a scale that measures perfectionism.

Saade, morin, and thomas (2012) describe critical thinking as the mental processes of discernment, analysis, and evaluation applied to information in order to achieve a logical final understanding and/or judgment. describe your approach to breaking down information into component parts to better understand the characteristics of a statement, concept, or problem. how might outlining to develop understanding? how do you know when to reach beyond previous experience and seek out other sources of information to enhance your understanding of the work in front of you? (this response does not require research support.)

Me with this psychology homework, i’m struggling with it.