Age is one of the protected grounds under Ontario’s Human Rights Code. Like all jurisdictions credible evidence, whether documentary or witness testimony, is needed for either side to support their version of facts.
According to Susan J. Herman, author of Hiring Right, A Practical Guide, the interview is the most frequently used selection tool and the least valid and reliable. Validity is the degree to which a selection tool like testing or interviewing measures what it is supposed to measure. The closer a statistic is to 1, the more valid it is. Yet interviews have an average validity of 0.14 while ability testing has an average validity of 0.53.
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