<p> Definitions of Key Terms (-1)</p><p>Attributes (Values, Codes): Characteristics of person, things, or concepts.</p><p>Variable: Logical grouping of attributes. The variable is gender; the attributes are male/female. The variable is animal; the attributes are cat/dog/horse/rabbit. The variable is social class; the attributes are low/middle/high. The variable is prejudice; the attributes are high/medium/low.</p><p>Concepts: Mental images that summarizes a set of similar observations, feelings, or ideas.</p><p>Conceptualization: The mental process whereby fuzzy and imprecise notions (concepts) are made more specific and precise. Answers the question “What do you mean by (prejudice, love, social class ) A verbal description of a mental image.</p><p>Operationalization: One step beyond conceptualization. The process of developing operational definitions.</p><p>Operational definition: The concrete and specific definition in terms of the operations by which observations are to be categorized.</p><p>Hypothesis: A formal statement about the relationship between two (or more) variables</p><p>Validity: The degree to which we are measuring what we want to measure and what we think we are measuring.</p><p>Reliability The degree to which an instrument consistently measures the same thing in repeated observations.</p>