A significant contribution of modern measures on intelligence such as the Wechsler scales is that they: abandoned the concept of mental age, and instead calculated IQ as an individual’s position relative to peers of the same age created a means by which to measure the seven main factors involved in an individual’s intelligence Not only measured the intelligence of groups of individuals, but also provided insight into group testing results. invented the frequency distribution as a way of calculating an individual’s mental age as opposed to his/her chronological age

In 1905, Alfred Binet and Theodore Simon,made the first successful attempt toformally measure intelligence. In 1908,when the scale was revised, they gave theconcept of Mental Age (MA), which is ameasure of a person’s intellectualdevelopment relative to people of her/hisage group. A mental age of 5 means thata child’s performance on an intelligencetest equals the average performance levelof a group of 5-year olds. ChronologicalAge (CA) is the biological age from birth.A bright child’s MA is more than her/hisCA; for a dull child, MA is below the CA.Retardation was defined by Binet andSimon as being two mental age years belowthe chronological age.In 1912, William Stern, a Ger manpsychologist, devised the concept ofIntelligence Quotient (IQ). IQ refers tomental age divided by chronological age,and multiplied by 100.IQ = ´ 100The number 100 is used as a multiplierto avoid the decimal point. When the MAequals the CA, the IQ equals 100. If MA ismore than the CA, IQ is more than 100. IQbecomes less than 100 when the MA is lessthan the CA. For example, a10-year-old child with a mental age of 12would have an IQ of 120 (12/10 ´ 100),MACA

The Wechsler Adult Intelligence Scale (IQ test) is constructed so that Full Scale IQ scores follow a normal distribution, with a mean of 100, and a standard deviation of 15. The mayor of Smart Town believes the county’s residents are smarter than the national average and wants to use it (the intelligence of the residents) as a marketing tool to bring industries to the area.A researcher is hired to conduct a study to determine whether Smart County’s residents have, on average, higher Full Scale IQs than the population. A random sample of 100 people from Smart County were given the IQ test and were found to have an average Full Scale IQ of 105.After analyzing the data to determine whether the mean Full Scale IQ score of the Smart County residents is higher than the national average, the p-value of 0.0004 was obtained.Using a 0.05 significance level, what conclusion can be drawn from the data? Do not reject the null hypothesis. The average Full Scale IQ of Smart County residents is not higher than the population average. Do not reject the null hypothesis. The average Full Scale IQ of Smart County residents is higher than the population average. Reject the null hypothesis. The average Full Scale IQ of Smart County residents is not higher than the population average. Reject the null hypothesis. The average Full Scale IQ of Smart County residents is higher than the population average.

culture-fair in its application?Wechsler Adult Intelligence ScaleWechsler Intelligence Scale for ChildrenRaven Progressive Matrices TestStanford-Binet Intelligence Scale

Which of the following is not true of the term IQ?Question 5Select one:a.Intelligence test scores of today are always based on the old formula of comparing a child’s mental age to their chronological ageb.Intelligence test scores of today are determined by comparing a person’s performance on the test with the performance of others in the same age groupc.Scores near 100 are average

One characteristic of psychologist Alfred Binet’s classic work on intelligence testing that has survived to the present day is __________.a pragmatic rather than theoretical approach to measuring intelligencea focus on the meaning of the concept that is being measuredthe widespread use of individual rather than group testinga consistent concern for the prevention of cultural bias in testing