In support of a summative evaluation of SciGirls Season Three, Multimedia Research developed a scale to assess preteen girls’ interest in nature and science. The work was sponsored by Twin Cities PBS under NSF Grant No. 1323713. Multimedia Research developed, piloted, validated and implemented the GINSS: A nine statement Likert scale constructed to reveal girls’ strength of interest in nature and science activities. Researchers and evaluators are encouraged to use this scale to extend its application. Please email if you eventually use the scale in your research or evaluation: Flagg