The exception was the scale used to measure growth mindset, which had an internal reliability coefficient of 0.7, somewhat below the commonly used benchmark
for acceptable reliability of 0.8.
Item 4 was reverse - coded, and a mean score of the six items (Cronbach's alpha = 0.67,
indicating acceptable reliability) was computed and divided into thirds of low, medium and high parental supervision.
The scale
showed acceptable reliability (all r's >.70) and validity through appropriately high correlations with marital satisfaction and anger (Fincham & Bradbury, 1992).
The Patients Health Questionnaire - 9 (PHQ - 9) specifically developed for use in primary care
with acceptable reliability, validity, sensitively was used.
The shared activity scale had
acceptable reliability across gender and age groups for both all partnered cases and dyads (Cronbach's αs between.60 and.64).
One of these, the 35 - item Eyberg Child Behavior Inventory (Eyberg, 1980), focuses on conduct problems in children aged 2 to 11 years and has
demonstrated acceptable reliability and validity.
Raters provided profiles of adequate and
acceptable reliability, with mean and median interrater reliabilities in the.80 s.
The DISC is highly structured, contains detailed symptom probes, has
acceptable reliability and validity,41,43 - 46 and requires relatively brief training.
Scales had good to excellent reliability with the exception of one scale that had
acceptable reliability (as measured by Cronbach's Alpha).
Even when an online test has shown
acceptable reliability and validity values, the use of normative data from paper - and - pencil questionnaires may not be appropriate [2], suggesting that as online testing spreads, research to obtain a bank of normative data from larger Internet samples should be an important goal.
Respondents were asked for their agreement with three items (Cronbach alpha = 0.65, indicating
acceptable reliability):
Responses (Cronbach alpha = 0.62, indicating
acceptable reliability) were on a 5 - point scale from (1) «strongly agree» to (5) «strongly disagree».
Responses (Cronbach alpha = 0.65, indicating
acceptable reliability) were coded on a 5 - point scale (1) «strongly agree», (2) «agree», (3) «neither agree nor disagree», (4) «disagree», (5) «strongly disagree».
Compared to other studies, all subscales displayed adequate temporal stability and
acceptable reliability.
The psychometric properties of the SCARED were good, as demonstrated by having
acceptable reliabilities (ranging from.75 — .41) and a moderate multivariate effect size (η p 2 =.08) between the adolescent boys and girls.