• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

Discuss the role of genetics & cultural differences in the development of intelligence.

Extracts from this document...


MORAL DEVELOPMENT DISCUSS THE ROLE OF GENETICS & CULTURAL DIFFERENCES IN THE DEVELOPMENT OF INTELLIGENCE. A study into IQ and genetics by Plomin et al. (1997) found from a longitudinal study of 245 children adopted (before the age of 1) that there was a correlation between the child and both sets of parents. Common sense suggests that as the child grew older they would become more like adoptive parents. However, this was not the case, instead the opposite happened in IQ, in adolescence there was no correlation with adoptive parents, the correlation wit biological parents remained. There was no difference adopted children and a control group who remained with biological parents. ...read more.


These individuals may influence IQ. Cultural factors are also apparent in differences in the desire to succeed. In an investigation into home background, the Rochester Longitudinal Study (Sameroff et al. 1993) that began in the 1970s has followed several hundred children from birth to adolescence. It has identified 10 environmental factors that were found to affect the children's IQ. The more factors a child had, the lower their IQ. In fact, IQ decreased at a rate of about 4 IQ points per factor, and together the factors were found to account for almost half the variability in children's IQ scores. However, these data are correlational. It may be that low parental IQ was the cause of the risk factors (e.g. ...read more.


There were: using a wide vocabulary, high rates of approval, language with a high information content, asking children about things rather than being directive, and responding to children. There was a correlation of 0.78 between IQ at age 3 and these parenting behaviours. Research by Shuey (1966) found that on average, black Americans score 15 points lower than white Americans on IQ tests. Goddard (1929) stated that 3/4 of the Italians, Jews and Russians tested were feeble minded. This lead to mass deportation and the introduction of the 1917 immigration act. Jensen (1969) argued that the difference between the two groups was the result of genetic differences. Scarr & Weinberg (1976) showed that for black children adopted into white families, IQ scores were 25 points higher than the mean for black children in general. ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our GCSE IQ Correlation section.

Found what you're looking for?

  • Start learning 29% faster today
  • 150,000+ documents available
  • Just £6.99 a month

Not the one? Search for your essay title...
  • Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

See related essaysSee related essays

Related GCSE IQ Correlation essays

  1. Comparison of SATs results to obtain statistical data on students.

    The over all mean level for science in 2001 is: ?fX??f= 5.43 The mean level is 5 in 2001 for science in 2001. The median level for females in science in 2001 is: Frequency= 25 Median= 13th value Median=

  2. The 3 statements I am going to investigate are: -Does the gender of the ...

    Looking at the results of all four graphs and the comparisons I have made, I have discovered that my hypothesis is correct for boys in Year 10 at least. Also I have seen that altogether, out of the 16 students that got Level 5 (or higher)

  1. An Investigation into Gender-Based Stereotyping Using IQ Estimates

    Hypotheses 3 was also confirmed and the males estimated their own IQ as being higher than their mothers. The results also indicate Hypotheses 4 as being confirmed as males gave a higher estimate of their own IQ than females gave of their own IQ estimates.

  2. My hypotheses are: -1. People's average SAT and average GCSE results will have a ...

    This dice landed on a three so the first piece of data is the third. Girls (91 ( 166) ( 60 = 32.891566265060240963855421686747 32.9 (1DP) I have decided to round up the 32.9 to 33 so that I have a whole amount of people to use.

  1. Mayfield High school

    4 4 4 4 5 5 5 6 6 6 6 6 6 7 7 7 7 7 7 8 8 8 8 9 9 9 9 0 0 1 2 3 4 4 5 6 6 6 6 7 7 0 0 Key: 7/2 = 72 10/0 = 100

  2. Mayfield Maths Coursework

    the following negative correlation is right or wrong by taking the mean median and mode and the average of the correlation. . I will be also having a stem and leaf diagram and an interquaritle range which will also prove my correlation.

  1. HYPOTHESIS Blonde girls are more intelligent than non blonde girls. Blonde girls that ...

    Parreen 104 16 Anderson 104 16 Carney 105 14 Talbert 106 35 Billard 107 61 Acton 108 22 Spencer 108 9 Pham 109 13 McDonald 109 30 White 112 10 Williams 113 50 Anderson 116 26 Blashaw 116 70 Campbell 116 1 Dorn 117 5 Chen 117 14 None Blondes

  2. This experiment will show that there is a significant positive correlation between males and ...

    Method Design The study that is going to be conducted is a field experiment, doing a field experiment means there is a reasonable amount of control over vairables The investigation will be carried out in the school common room or in classrooms, meaning it will be conducted in a natural environment for students.

  • Over 160,000 pieces
    of student written work
  • Annotated by
    experienced teachers
  • Ideas and feedback to
    improve your own work