Miles is studying visual memory function. he has recruited research participants from introductory psychology students. he shows a randomly selected one-third of the participants emotionally upsetting photos, shows another one-third very happy photos, and shows the last one-third neutral photos. he then tests visual memory and compares the scores of the groups. what design is miles using?

Which is relatively better: a score of 76 on a psychology test or a score of 22 on an economics test? scores on the psychology test have a mean of 90 and a standard deviation of 13. scores on the economics test have a mean of 52 and a standard deviation of 10.

What caused the settlement of more african americans in the mississippi alluvial plain region then in the ozark mountains region?

"martin luther king, jr. was buried the day after my first child was born, my daughter brooke. she was born april the eighth of 1968. i went from the hospital to the grave. and i spent three days thinking about what i was going to do with my life and decided that politics, although not perfect, was the best available nonviolent means of changing how we live. " - maynard jackson, 1990 which statement best explains how maynard jackson's 1968 decision foretold his future? question 8 options: he was elected mayor of atlanta in 1973 he was elected governor of georgia in 1990. he started his own bond and security business he removed segregation signs form water fountains at city hall