For each description below, identify the type of developmental design used: ·         A researcher tests groups of 1st graders, 5th graders, and 8th graders on their ability to correctly identify...

For each description below, identify the type of developmental design used:

·         A researcher tests groups of 1st graders, 5th graders, and 8th graders on their ability to correctly identify another person’s intentions in a story.

·         A group of 6-month-olds is tested every 6 months for 5 years on their fine motor skills.

·         Groups of 3-year-olds and 10-year-olds are tested each year over 10 years on their ability to pay attention to a task.