GROWTH DEVELOPMENT CHILD
MEASUREMENT OF INTELLIGENCE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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It is valid but not reliable
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It is both reliable and valid
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It is neither reliable nor valid
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It is reliable but not valid
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Detailed explanation-1: -(It is reliable but not valid). Explanation: Reliability refers to the consistency of measurement. This thermometer is reliable because in the same conditions, it always shows the same temperature. However, because this is not correct temperature, it is not valid, it does not measure what it is supposed to.
Detailed explanation-2: -The Flynn effect refers to a secular increase in population intelligence quotient (IQ) observed throughout the 20th century (1–4). The changes were rapid, with measured intelligence typically increasing around three IQ points per decade.
Detailed explanation-3: -While Binet’s original intent was to use the test to identify children who needed additional academic assistance, the test soon became a means to identify those deemed “feeble-minded” by the eugenics movement.
Detailed explanation-4: -IQ was originally computed by taking the ratio of mental age to chronological (physical) age and multiplying by 100. Thus, if a 10-year-old child had a mental age of 12 (that is, performed on the test at the level of an average 12-year-old), the child was assigned an IQ of 12/10 × 100, or 120.
Detailed explanation-5: -It is important that intelligence tests be standardized on a regular basis, because the overall level of intelligence in a population may change over time. The Flynn effect refers to the observation that scores on intelligence tests worldwide have increased substantially over the past decades (Flynn, 1999).