A Researcher Noticed That as the Prevalence of Cell Phone

question 32

Multiple Choice

A researcher noticed that as the prevalence of cell phone usage increased between the years of 1998 and 2010 so did the number of individuals diagnosed with autism.He decided that cell phone usage by expectant mothers was causing autism.Which of the following would NOT be helpful in evaluating his assumption?

• A)The researcher should develop a clearly testable and falsifiable hypothesis.
• B)The researcher should carefully design a reproducible experiment.
• C)The researcher's experiment should include thousands of participants from all gender,socioeconomic,racial,and ethnic groups both with and without autism.
• D)The researcher should use a small sample size (20 participants)of autistic children and their mothers to support the hypothesis.

---

Definitions:

Relative Reactivity

A measure of how readily a chemical species engages in a reaction under specified conditions compared to other species.

Reactive Intermediates

Highly reactive species that are formed transiently during chemical reactions, often determining the product distribution.

Nucleophilic

Describes a type of chemical species that donates an electron pair to form a chemical bond in reaction, indicating a tendency to seek positively charged or electron-deficient sites.

Basic

Characteristic of substances that have a pH greater than 7, which can accept protons (H+) or donate electrons and are often slippery to the touch.