Overview
Based on the growing need for quick and frequent pulse checks on social and emotional skills for all students, Mosaic by ACT SEL Screener (formerly ACT Tessera) is a shorter assessment for grades 3-12 that uses age-appropriate items and activities. It can be administered up to four times over the course of a year to quickly pinpoint areas of strength, improvement, and perception of school climate.
Key Details
Grade Level
Assessment Type
Domains Assessed
Respondent
Method
Cost
Fee for Service
Time per Student
5-7 min
Items
22 (3-5); 30 (6-12)
Item Format
Likert; Situational Judgement; Forced- Choice
Approach
Dual Factor
Populations
MS/HS in US
Scoring
Subscale Scores
Domain-Level scores
Scoring Procedures
Score Report Provided by Developer
Interpretive Information
Level of Mastery
Psychometric Properties
Reliability
MS: 0.67-0.75; SJT: 0.68-0.84; traditional reliability metrics do not apply to FC (ACT, 2018)
MS internal consistenct (Cronbach's alpha) estimates from 0.97-0.75 for SRT, and 0.68-0.84 for SJT (ACT, 2018)
HS internal consistency (Cronbach's alpha estimates from 0.72-0.78 for SRT, and 0.63-0.86 for SJT (ACT. 2018)
Validity
Items were reviewed and mapped to domains by a panel of independent raters (N=5) who were psychology doctoral students or held a Ph.D. in psychology. Raters showed strong agreement in their mapping (greater than or equal to 0.95 agreement as measured by intraclass correlation coefficients) (ACT, 2018).
Confirmatory factor analysis was used to find support for the intended domains on the self-report form. Results were interpreted to suggest six factors corresponding to the Tessera constructs. For the forced choice items, a multidimensional IRT model was used to find support for six distinct factors. Factor models did not fit for the situational judgment items (ACT, 2018).
Composite scores based on forced choice, situational judgment, and self-report items for all domains correlated with GPA in both middle school and high school (ACT, 2018).