Which one of the following statements about intelligence is the most accurate?

IQ is a valid measurement, and environmental factors do not change mental ability.
Intelligence is mostly genetic, has the most variability between groups, and is reliable regardless of the environment.
Intelligence is partially genetic, can be influenced by environmental factors, and has the most variability within groups.
Intelligence is different between groups because of genetics.

I think the answer is C but is not sure...please help

I think you are right; C does seem to be correct.

Definitely the third alternative is corrrect.

To determine which statement about intelligence is the most accurate, let's analyze each option:

A) IQ is a valid measurement, and environmental factors do not change mental ability.
This statement is not entirely accurate. While IQ (Intelligence Quotient) tests attempt to measure intelligence, they have limitations and may not capture the full scope of mental ability. Moreover, environmental factors can indeed have an impact on mental ability, such as access to quality education, nutrition, and opportunities for cognitive stimulation.

B) Intelligence is mostly genetic, has the most variability between groups, and is reliable regardless of the environment.
This statement is also not entirely accurate. While genetics play a role in intelligence, it is not the sole determining factor. Environmental factors also significantly impact intelligence. Additionally, the claim about the most variability between groups is not supported by scientific evidence.

C) Intelligence is partially genetic, can be influenced by environmental factors, and has the most variability within groups.
This statement is the most accurate among the given options. Research suggests that intelligence is influenced by both genetic and environmental factors. While genetics contribute, factors such as upbringing, education, socio-economic status, and access to resources can also affect intelligence. Furthermore, the variability in intelligence is generally found to be greater within groups than between groups.

D) Intelligence is different between groups because of genetics.
This statement is not accurate. The differences in intelligence between groups cannot be solely attributed to genetics. Such claims have been debunked by scientific research, which emphasizes the impact of a variety of factors, including environmental, cultural, and societal influences.

Based on the information provided, option C is the most accurate statement.