Answer:
groups of participants differing in age at the same point in time
Explanation:
Cross-sectional design: This is a type of observational study design. In this study, the investigator calculate the exposures and the outcome in study participants at the same time.
The research involves different groups of people who have different variables of interest but consists of other characteristics, for example, educational background, socioeconomic status, and ethnicity.
#1) Before the Fifteenth Amendment was passed, which states refused African-Americans the right to vote?
Answer: The answer is C:some northern and southern states. Once approved by the required two-thirds majorities in the House and Senate, the 15th Amendment had to be ratified by 28, or three-fourths, of the states. Due to the reconstruction laws, black male suffrage already existed in 11 Southern states. Since almost all of these states were controlled by Republican reconstruction governments, they could be counted on to ratify the 15th Amendment. Supporters of the 15th Amendment needed only 17 of the remaining 26 Northern and Western states in order to succeed. At this time, just nine of these states allowed the black man to vote. The struggle for and against ratification hung on what blacks and other political interests would do.
Because georgia has a consistantly mild climate
Answer:
Variable Time Schedule.
Explanation:
This variable is best explained as a schedule of reinforcement where a response is rewarded after an unpredictable amount of time has passed, which is the opposite of a fixed interval schedule. This schedule produces a slow, steady rate of response. In other words, operant conditioning can either strengthen or weaken behaviors through the use of reinforcement and punishment.
This learning process involves forming an association with behavior and the consequences of that action.
