• for love
• for religious beliefs
• want to have children
• to make a commitment to each other
The 19th amendment is when us women got the right to vote it made us equal to men in a big way. It gave us a voice in our government. When the men went to go fight in the wars women started working in factories because someone had to do it and all the men were gone.
Answer: Internal validity
Explanation:
Laboratory experiments are the experiment that is conducted in labs with the tight and high control of variables and conditions.They can be managed with high accuracy and provide precise results due to specific measurements.
As, laboratory experiment have high level of controlling mechanism over the variable in an experiment , it tends to show high internal vapidity.There is freedom of manipulation and alteration in key and independent variables .