Which of the following best describes the impact of the Fourteenth Amendment? It took some time for the Fourteenth Amendment to secure the civil rights of African Americans and others.

The Amendment immediately blocked the efforts of Southern states to deny the rights of African Americans.

The Amendment was never successful in helping Americans achieve equality under the law.

Pj conducts an experimental study on the effects of soft music during high stakes science testing. he randomly assigns students at the school. in one condition he does not provide music for testing while in the other group he does provide the music. he administers a pretest at the beginning of the year and a posttest at the end of the year. pj’s design is best described as a: a.static group comparisonb. pretest-posttest control group designc.control-group-time-series designd. nonrandomized control-group pretest-posttest design