Siegler Lab Available studies 12/01/2020:
1. Improving Fraction Addition and Multiplication (Protocol #20-199)
a. Research question: Does practicing math with a balanced problem set lead to
better fraction arithmetic learning than using a set from a popular US
textbook?
b. Age range: 5 th -8 th graders (10- to 14-year-olds)
c. Description: Students will be asked to solve fraction addition and
multiplication problems over two sessions. On the first day, they will take a
pre-test (approx. 15 minutes to complete) and then complete a practice set for
15 minutes. Once participants complete this section, they will receive a
follow-up email with the link to the second half of the session, where they will
solve another practice set and take a post-test (approximately 30 minutes
total).
d. Compensation at the end of second session
2. Recharging Rational Number Understanding (Protocol #19-326)
a. Research question: Do students perceive equivalent fractions, decimals, and
percentages as equivalent in size?
b. Age range: 7 th -8 th graders
c. Description: Students will be asked to solve different math questions that they
have seen in school, such as fraction arithmetic and number line estimation,
over a single 20-30 minute session on Desmos. When parents/guardians sign
the consent form, they will also receive an optional form to enter demographic
information and their child’s standardized math scores. All information
collected is confidential and is only used to have a baseline of students’
mathematical knowledge.