Jim Crow laws were state and local laws passed from the end of Reconstruction in 1877 through the mid-1950s by which white southerners reasserted their dominance by denying African Americans basic social, economic, and civil rights, such as the right to vote.
Answer:
Local Unions, National Unions, and Federations
Explanation:
It is easiest to differentiate among three distinct levels within the labor movement: local unions, national unions, and federations.
Rachel Carson was one of te best to care about the environment thanks to silent spring she change the world think
Answer:
Content validity
Explanation:
Your friend, Tania, is asking your advice on her new study design. She is conducting a study on whether milk chocolate consumption prior to a memory task will improve recall performance as compared to consuming white chocolate. She decides to include three participants in each group. You tell her that she should likely have more participants or she will lack <u>content</u> validity. Content validity has to do with whether your research subjects or respondents are representative of all aspect of your research construct. Increasing the sample size or the number of replicates per treatment increases the construct validity by increasing the degree of freedom and reducing experimental error. Increasing the sample size will make the study a more representation of the entire study population.
Answer:
<h2>Hue Cancellation is an experimental technique where a person cancels out any perception of a particular color in a test light by adding light of another color.</h2>
