摘要：This research aims to develop instrument for assessing student’s affective domain
using self-assessment (SA) and peer-assessment (PA) models employs the
modified model of development by Mccoach. The sampling technique used was
cluster random sampling. Aiken, CFA second order and alpha cronbanch were
used as the data analysis techniques, aided by Excel program, Lisrel and SPSS.
The results show that the there were 6 constructs of instrument for assessing
student’s affective domain. The content validity was done using Aiken index and
the result ranged from 0,750-1,00 and all of the items were valid. The construct
validity of the instrument was done using CFA approach. A fit model of instrument
for affective domain based on self-assessment was developed with the value of
Chi-square (X^2) = 267,22 df = 246, P-value = 0,168, RMSEA = 0,022 and the
instrumentbased on peer-assessment has the value of Chi-Square (X^2) = 151,55,
df = 126, P-value = 0,060, RMSEA = 0,034. On the items estimation, the value of
loading factor was 0,31-0,99 (>0,30) which means that the items in the instruments
based on SA and PA are valid. The instruments reliability reached 0,788-0,886
which means that all the instruments developed were valid. The valid instrument is
very important to get good information about self-assessment and peer-assessment.
