Tom developed the following scientific question Do boys score higher on IQ than girls He gives the same IQ tests to two 12 years old boys and two 12 years old girls. After checking the IQ scores on the tests he realizes that the two girls had a much higher average score than the two boys He concluded that girls have higher IQs than boys
What is wrong with the experiment:

Not Ethical

not a random example

biased replication needed sample size too small

needs a control

did not use safety skills

more than one independent variable

Data does not make sense with problem statement

Conclusion does not make sense with the data and problem statement

Name:

Independent Variable

Dependent Variable

Constant

Control
How can you improve the experiment