Variable Details:
Source:
Skaalvik, Einar M. (1995), "A Test of Internal/External Frame of Reference Model at Different Levels of Math and Verbal SelfPerception", American Educational Research Journal, 32, 161184.
[Endnote]
Variable
Definition:
Item(s):

I feel calm in mathematics lessons.

I am tense in mathematics lessons.

I feel safe in mathematics classes.

I am nervous in mathematics lessons.

I am worried in mathematics lessons.

I am relaxed in mathematics lessons.

I am anxious when we have mathematics in school.

I am always nervous when we have mathematics in school.
Citations:
 Marsh, H.W. (1990), "SelfDescription Questionnaire II: A theoretical and empirical basis for the measurement of multiple dimensions of adolescent selfconcept: An interi, test manual and a research monograph". [Endnote]