Describe standardization and the roles of the normal curve, the Flynn effect, reliability (test-retest and split-half), and validity (content and predictive). Analyze the normal curve of intelligence testing and explain the mean, standard deviation, and percentiles for the data.

What statement is true about all chemical changes? a) chemical changes can be undone. b) chemical changes cannot be reversed. c) chemical changes change the color of objects. eliminate d) chemical changes do not form new products.

Ijust need with an idea of how to write it or example.1. for this assignment you will create a developmental timeline. the timeline should include significant events, or possible future significant events, from your entire life—from womb to tomb. you are encouraged to personalize your timeline with pictures, etc. for each incident or event that you list, you need to relate it to a concept developed by piaget, kohlberg, or erikson. for example, if one of your events is, “i said my first word, ball,” and you have this on your timeline at 15 months, you also need to say, “piaget’s preoperational stage.” along with each event you discuss, provide a brief description of its significance. score

Lori attended a lecture about the sun, and the presenter had placed this image on the wall. which layer of the sun could this image be referring to?