Bart wants to know whether skateboarding decreases reaction time (makes you react faster). He recruits 50 children who haven't skateboarded before. He randomly assigns about half of them to the "skateboarding" group, and the other half to the control group. The "skateboarding" group has skateboarding lessons after school for half an hour every day for two weeks. The control group meets for half an hour every day for two weeks after school and does homework. After the two weeks are up, Bart measures the reaction time of the members of both groups. What type of design is this

The following terms are all associated with harmony except: triad: the simplest chord..it is made up of three notes that are usually spaced one note apart-do, mi, and sol in the do-re-mi (major) scale. consonance: a combination of notes that is considered stable and without tension. phrases: where melodies are often made up of shorter sections. chords: the smallest harmonic unit is one consisting of two notes, but we usually have three or more notes played or sung together to create harmony. those groups of notes make up what are called chords. dissonance: a combination of notes that is considered unstable and tense, so much that they sometimes sound as if they are fighting with one another.

4/5 of a number is 64 find the number

3. which to change the unfair treatment of minority groups by government? the civil rights movement the news media the jim crow laws the 14th amendment