Please assess the completion status of the following clinical trial:

Trial Title: A Pilot Study of Teacher-Child Interaction Training - Universal in Head Start

Study Design Characteristics:
- Allocation: NON_RANDOMIZED
- Intervention Model: PARALLEL
- Observational Model: None
- Primary Purpose: PREVENTION
- Time Perspective: None
- Masking: SINGLE
- Phase: None
- Number of Arms: 2.0

Eligibility Criteria:
Teachers' Inclusion Criteria:~* Serve as a head, co-, and/or assistant teacher in a Head Start or PreK Counts classroom at the participating early childhood education center.~* Speak and read English proficiently.~* Provide written informed consent.~Teachers' Exclusion Criteria: Do not speak and read English proficiently.~Children's Inclusion Criteria:~* Enrolled in one of the participating Head Start or PreK Counts classrooms prior to baseline evaluations.~* Aged 3 through 5 years old.~* Provided an informational letter about the study to their parents.~Children's Exclusion Criteria: There are no exclusion criteria for children.~Educational Staff's Inclusion Criteria (qualitative interviews):~* Participated in or observed TCIT-U training and/or serve as a classroom-based (e.g., assistant, behavioral specialist) or administrative (e.g., center director) staff for the classrooms participating in TCIT-U.~* Speak and read English proficiently.~* Provide written informed consent.~Educational Staff's Exclusion Criteria (qualitative interviews): Do not speak and read English proficiently.

- Gender: ALL
- Minimum Age: 3 Years
- Maximum Age: None
- Healthy Volunteers: t

Study Arms:
- TCIT-U (Type: EXPERIMENTAL): Four teachers from two Head Start classrooms will be assigned to Teacher-Child Interaction Training - Universal (TCIT-U). TCIT-U occurs in two phases (6 weeks per phase): Child-Directed Interaction (CDI; focusing on relationship building) and Teacher-Directed Interaction (TDI; focusing on managing behavior problems). The TCIT-U Trainer (a licensed clinical child psychologist) will provide teachers with group didactic sessions (6 hours per phase) and individualized live coaching in their classrooms (20 minutes, once per week). Strategies include the use of PRIDE skills (Praise, Reflection, Imitation, Behavior Description, and Enthusiasm) or specific verbalizations that promote warm, responsive interactions, as well as classroom-appropriate behavior modification strategies which include using effective commands, prompts, natural consequences, differential social attention, and a modified time-out appropriate for use in a classroom.
- Usual Care (Type: NO_INTERVENTION): Four teachers from 2 PreK Counts classrooms will be assigned to the Usual Care (UC) group. They will continue their existing behavioral management strategies and techniques. Teachers will report on specific training in and use of other behavior management and social-emotional learning programs at baseline. At the conclusion of the study, UC teachers and staff will be offered didactic training in TCIT-U principles and strategies.

Based on this trial design, predict the completion outcome and termination type (if applicable).

Answer: outcome: terminate
termination_type: lack of efficacy