Enviro literacy project

Learning progressions are descriptions of the successively more sophisticated ways of thinking about a topic that can follow one another as children learn about and investigate a topic over a broad span of time.

• Observation: written assessment items, interview protocol
• interpretation: psychometric
• cognition

Written assessment three formats:

• constructed response item
• ordered multiple choice + constructed response
• multiple true+false + CR

Clinical interview

• general questions
• follow up questions

• How well can items listed above diagnose students' achievement levels?
• How to design items in these formats that elicit accurate indicators of students' understanding?
• Do ordered multiple choice and constructed response elicit the same evidence?

• OMC questions are less reliable
• OMC questionsa are less discriminative

CR

• most effective to differentiate students among levels
• but some items do not differentiate students at similar level

OMC

• less discriminate and less reliable
• do not measure students at high ability levels well
• combination of CR/OMC better