Variable | Intervention (n = 60) | Control (n = 61) | mixed ANOVAa |
|---|
M
|
SD
|
M
|
SD
| Effect |
F ratio
|
df
|
p
| Partial η2 |
|---|
NPI-NH |
 t0 | 21.58 | 19.08 | 25.56 | 15.99 | G | 1.66 | 1 | .200 | .01 |
 t6 | 24.58 | 16.14 | 25.34 | 15.86 | T | 3.10 | 1 | .081 | .03 |
G x T | 2.72 | 1 | .102 | .02 |
QUALIDEM |
 t0 | 78.64 | 13.87 | 71.92 | 14.75 | G | 6.08 | 1 |
.015
| .05 |
 t6 | 75.26 | 14.62 | 70.70 | 15.51 | T | 3.50 | 1 | .064 | .03 |
G x T | 1.01 | 1 | .317 | .01 |
ADCS-ADL-sev |
 t0 | 12.55 | 10.30 | 11.69 | 8.37 | G | 0.07 | 1 | .892 | .00 |
 t6 | 10.83 | 10.58 | 11.33 | 9.25 | T | 9.37 | 1 |
.003
| .07 |
G x T | 1.01 | 1 | .316 | .01 |
-
Note. ANOVA Analysis of variance, G Main effect of group, T Main effect of time, G x T Interaction effect between group and time, t0 baseline data collection, t6 data collection directly after the end of the 6-month intervention period, Intervention MAKS-s intervention group, Control waitlist control group, NPI-NH Total score (frequency x severity) of the Neuropsychiatric Inventory – Nursing Home Version, higher scores indicate more pronounced behavioural and psychological symptoms of dementia, range: 0–144, QUALIDEM Total score of the QUALIDEM, higher scores indicate better quality of life, range: 0–100, ADCS-ADL-sev Total score of the Alzheimer’s Disease Cooperative Study Activities of Daily Living Inventory – Severe Impairment Version, higher scores indicate higher capabilities in activities of daily living, range: 0–54
- aANOVAs were based on scores that were transformed to normality: square root transformation for NPI-NH and ADCS-ADL-sev), quadratic transformation for QUALIDEM
- p-values < .05 are printed in bold; n = 121 (intention-to-treat)
