Table 5.
Construct Validity: Convergent and divergent associations with related constructs (N = 93)
| MMT-SMS | |||||||||
| Stigma Mechanisms: | Anticipated | Enacted | Internalized | ||||||
| Scales (subscales): | Total | FAM | EMP | HCW | Total | FAM | EMP | HCW | Total |
| Drug Use History | |||||||||
| Live with Others who Use Drugs | .233** | .187* | .216* | .244* | .222* | .212* | .103 | .257** | .165 |
| No. Years Illicit Opioid Use | −.192 | −.197 | −.154 | −.122 | −.052 | −.146 | −.072 | −.036 | −.009 |
| Lifetime Injection History | .080 | .041 | .148 | .058 | .187* | .143 | .230* | .138 | .147 |
| MAT Use History | |||||||||
| Previous MAT History (yes, no) | −.094 | −.114 | −.033 | −.084 | −.083 | −.060 | −.093 | −.057 | .048 |
| No. of Times Previously on MAT | −.108 | −.156 | −.071 | −.035 | .014 | −.061 | .047 | .053 | −.031 |
| Current Methadone Dose (n = 83) | .137 | .105 | .058 | .167 | .081 | .001 | .117 | .089 | −.230* |
| SU-SMS | |||||||||
| Stigma Mechanisms: | Anticipated | Enacted | Internalized | ||||||
| Scales (subscales): | Total | FAM | EMP | HCW | Total | FAM | EMP | HCW | Total |
| Drug Use History | |||||||||
| Live with Others who Use Drugs | .203* | .189* | .207* | .169 | .179* | .152 | .120 | .171 | .114 |
| No. Years Illicit Opioid Use | −.037 | −.015 | −.010 | −.072 | −.055 | −.089 | −.023 | −.015 | −.118 |
| Lifetime Injection History | .139 | .211* | .096 | .083 | .163 | .219* | .175 | .066 | .145 |
| MAT Use History | |||||||||
| Previous MAT History (yes, no) | .026 | .087 | .038 | −.027 | −.060 | .022 | −.082 | −.062 | .018 |
| No. of Times Previously on MAT | −.076 | −.067 | −.065 | −.069 | −.058 | −.059 | −.100 | .015 | −.039 |
| Current Methadone Dose (n = 83) | .004 | −.043 | .005 | .052 | .058 | −.007 | .040 | .106 | −.065 |
| MMT-SMS and SU-SMS Correlation matrix | |||||||||
| Stigma Mechanisms: | MMT Anticipated | MMT Enacted | MMT Internalized | ||||||
| Scales (subscales): | Total | FAM | EMP | HCW | Total | FAM | EMP | HCW | Total |
| SU Anticipated (Total) | .627*** | .395*** | .523*** | .592*** | .563*** | .405*** | .382*** | .585*** | .331*** |
| SU Anticipated FAM | .478*** | .360*** | .437*** | .361*** | .464*** | .405*** | .343*** | .387*** | .278** |
| SU Anticipated EMP | .536*** | .313** | .492*** | .484*** | .441*** | .277** | .356*** | .451*** | .265** |
| SU Anticipated HCW | .637*** | .359*** | .448*** | .722*** | .575*** | .379*** | .305*** | .709*** | .332*** |
| SU Enacted (Total) | .580*** | .372*** | .450*** | .767*** | .690*** | .549*** | .542*** | .602*** | .335*** |
| SU Enacted FAM | .401*** | .310** | .354*** | .308** | .474*** | .490*** | .334*** | .331*** | .316** |
| SU Enacted EMP | .420*** | .282** | .401*** | .332*** | .578*** | .510*** | .587*** | .338*** | .186 |
| SU Enacted HCW | .547*** | .287** | .317** | .709*** | .586*** | .308** | .382*** | .739*** | .279** |
| SU Internalized (Total) | .397*** | .348*** | .353*** | .262* | .395*** | .436*** | .269** | .255* | .521*** |
Correlation is significant at 0.001 (***), 0.01(**), or 0.05(*) level (2-tailed). MMT = Methadone Maintenance Treatment. MAT = Medication-assisted Treatment (includes methadone, buprenorphine, LAAM). SU = Substance Use; FAM = Family Members; EMP = Employers; HCW = Healthcare Workers. Inter-scale/subscale correlations along the diagonal appear in bold text.