Page 125 - BUKU SYNOPSIS

The validity test criteria that are considered good based on the

Aiken Value method (Aiken, 1985) are:

Low Validity (VR) CVI < 0.4

Medium Validity (VS) 0.4 CVI < 0.8

High Validity (VT) CVI 0.8

Then, the researcher carried out a reliability test of the

instrument using the Rasch Measurement with the help of the Winsteps

and Facets application to see reliability by observing person reliability

and item reliability with Cronbach's Alpha criteria (measuring

reliability, namely assessing the interaction of person and item as a

whole)

Table 4. Reliability Criteria of Alpha Cronbach

Category
< 0.80 Excellent
0.7 – 0.8 Good
0.6 – 0.7 Acceptable
0.5 – 0.6 Poor
< 0.5 Unacceptable

At the same time, she analyzed the consistency of respondents and the

quality of instrument items to consider measuring reliability using

person reliability values and item reliability with Rasch modeling

(Sumintono and Widhiarso, 2014, p.85).. Lastly, Andrich Threshold

was applied to analyze whether the description of each scale is clear and

understood by the respondents.

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