The Timing of Puberty Has Changed Over the Past Few

question 127

Multiple Choice

The timing of puberty has changed over the past few generations.What does this trend likely reflect

• A) an increase in pollution 
• B) improvements in nutrition and medical care 
• C) increases in sexual activity at an earlier age, triggering earlier pubescence 
• D) changes in genetically predisposed timing of puberty

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Definitions:

ANOVA

A statistical method, short for Analysis of Variance, that assesses potential differences in means among multiple groups.

Assumptions

Assumptions are accepted truths or beliefs that are taken for granted without proof, used as a basis for reasoning, discussions, or theoretical modeling.

Nonparametric Test

A type of statistical test that does not assume the data follows a normal distribution or any other specified parameters.

ANOVA

Short for Analysis of Variance, it's a statistical method used to compare means among three or more groups for statistical significance.