Table 4.
No. of Raters × No. of Items |
RCS Cognitive g |
RCS Affective g |
RCS Motor g |
|||||||
---|---|---|---|---|---|---|---|---|---|---|
n'r | n'i | Grades K-l | Grades 2–3 | Grades 4–5 | Grades K-l | Grades 2–3 | Grades 4–5 | Grades K-l | Grades 2–3 | Grades 4–5 |
1 | 3 | .41 | .44 | .54 | .55 | .64 | .58 | .51 | .65 | .64 |
6 | .48 | .53 | .69 | .60 | .70 | .66 | .55 | .68 | .71 | |
12 | .53 | .58 | .80 | .63 | .73 | .70 | .57 | .70 | .74 | |
20 | .55 | .61 | .85 | .65 | .75 | .72 | .58 | .71 | .76 | |
3 | 3 | .66 | .68 | .74 | .78 | .83 | .79 | .75 | .84 | .82 |
6 | .72 | .75 | .85 | .81 | .87 | .84 | .78 | .87 | .87 | |
12 | .76 | .80 | .91 | .84 | .89 | .87 | .80 | .88 | .89 | |
20 | .78 | .82 | .94 | .84 | .90 | .88 | .80 | .88 | .90 | |
5 | 3 | .75 | .76 | .80 | .84 | .88 | .86 | .83 | .90 | .87 |
6 | .81 | .82 | .89 | .88 | .91 | .90 | .85 | .91 | .91 | |
12 | .84 | .86 | .94 | .89 | .93 | .92 | .87 | .92 | .93 | |
20 | .85 | .88 | .96 | .90 | .93 | .93 | .87 | .93 | .94 | |
8 | 3 | .81 | .81 | .84 | .89 | .91 | .90 | .88 | .93 | .91 |
6 | .86 | .87 | .91 | .91 | .94 | .93 | .90 | .94 | .94 | |
12 | .89 | .90 | .95 | .93 | .95 | .94 | .91 | .95 | .95 | |
20 | .90 | .92 | .97 | .93 | .96 | .95 | .91 | .95 | .96 | |
10 | 3 | .83 | .83 | .86 | .91 | .93 | .91 | .90 | .95 | .92 |
6 | .88 | .89 | .92 | .92 | .95 | .94 | .92 | .95 | .94 | |
12 | .91 | .92 | .96 | .94 | .96 | .95 | .93 | .96 | .96 | |
20 | .92 | .93 | .97 | .95 | .96 | .96 | .93 | .96 | .96 |
Note. g = predicted generalizability coefficient for a D study with the specified number of items (I) and raters (R), when items and raters are crossed with persons (P; i.e., same group of raters for each ratee); RCS = Response to Challenge Scale; n'i = number of items; n'r = number of raters. Results are based on the same Ns reported in Tables 1–3 for homogeneous groups.