Table 1.
Incidence Rates, Kappa, Affected Status Agreement Statistics, and Consistency Values for Alternative Operational Definitions of Reading Disability
| Incidence | |||||
|---|---|---|---|---|---|
| Variable | G1 | G2 | Kappa | ASAS | Consistency |
| NWF25 | .30 | .21 | .40 | .38 | .47 |
| NWF20 | .25 | .17 | .38 | .34 | .42 |
| NWF15 | .18 | .12 | .36 | .29 | .37 |
| NWF10 | .12 | .07 | .33 | .24 | .31 |
| NWF5 | .05 | .03 | .35 | .23 | .29 |
| NWF3 | .03 | .02 | .38 | .25 | .31 |
| UNEXNWF25 | .30 | .23 | .38 | .37 | .47 |
| UNEXNWF20 | .24 | .18 | .36 | .32 | .42 |
| UNEXNWF15 | .18 | .13 | .34 | .28 | .37 |
| UNEXNWF10 | .12 | .08 | .31 | .23 | .31 |
| UNEXNWF5 | .06 | .04 | .27 | .18 | .24 |
| UNEXNWF3 | .04 | .02 | .23 | .15 | .21 |
| ORF25 | .25 | .22 | .59 | .52 | .65 |
| ORF20 | .19 | .17 | .58 | .48 | .62 |
| ORF15 | .15 | .13 | .57 | .46 | .59 |
| ORF10 | .09 | .08 | .55 | .41 | .55 |
| ORF5 | .04 | .04 | .56 | .41 | .53 |
| ORF3 | .02 | .02 | .56 | .41 | .57 |
| UNEXORF25 | .25 | .23 | .55 | .48 | .63 |
| UNEXORF20 | .20 | .18 | .52 | .44 | .58 |
| UNEXORF15 | .15 | .14 | .47 | .38 | .52 |
| UNEXORF10 | .10 | .09 | .42 | .31 | .45 |
| UNEXORF5 | .05 | .05 | .34 | .23 | .36 |
| UNEXORF3 | .03 | .03 | .29 | .19 | .31 |
| RTI25 | .24 | .24 | .52 | .47 | .64 |
| RTI20 | .19 | .19 | .51 | .43 | .61 |
| RTI15 | .13 | .14 | .49 | .39 | .58 |
| RTI10 | .09 | .09 | .46 | .34 | .53 |
| RTI5 | .04 | .04 | .47 | .33 | .52 |
| RTI3 | .02 | .03 | .45 | .30 | .52 |
| LCRC25 | .24 | .24 | .48 | .43 | .61 |
| LCRC20 | .19 | .19 | .46 | .39 | .57 |
| LCRC15 | .15 | .14 | .44 | .35 | .51 |
| LCRC10 | .10 | .09 | .39 | .29 | .44 |
| LCRC5 | .05 | .05 | .33 | .22 | .36 |
| LCRC3 | .03 | .03 | .29 | .18 | .39 |
| ANY1 | .17 | .17 | .14 | .16 | .28 |
| ANY2 | .06 | .07 | .08 | .08 | .15 |
| ANY3 | .09 | .09 | .25 | .19 | .32 |
| ANY4 | .10 | .07 | .41 | .30 | .39 |
| ANY1PLUS | .43 | .40 | .52 | .56 | .70 |
| ANY2PLUS | .26 | .23 | .57 | .51 | .65 |
| ANY3PLUS | .19 | .17 | .55 | .46 | .59 |
| ANY4PLUS | .10 | .07 | .41 | .30 | .39 |
| 2PLUS1PLUS | .26 | .40 | .48 | .48 | .83 |
| 3PLUS1PLUS | .19 | .41 | .42 | .40 | .88 |
| 4PLUS1PLUS | .10 | .40 | .25 | .23 | .91 |
| 4PLUS2PLUS | .10 | .23 | .38 | .30 | .76 |
| 4PLUS3PLUS | .10 | .17 | .44 | .34 | .66 |
| 3PLUS2PLUS | .19 | .23 | .55 | .47 | .71 |
Notes. NWF = Nonword Fluency. UNEXPNWF = Unexpected Nonword Fluency. ORF = Oral Reading Fluency. UNEXPORF = Unexpected Oral Reading Fluency. RTI = Response to Instruction. LCRC = Listening Comprehension Reading Comprehension Discrepancy. ANY = Any Symptom; ANYNPLUS = N or more Symptoms.