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Table 2 Characterization of the instruments used in the studies included in this systematic review

From: Collective efficacy in soccer teams: a systematic review

NR study Evaluation instrument Instrument dimensionality and type of response scale Psychometric properties of instruments Collective efficacy indicators Attributes of collective efficacy
3 Football Collective Efficacy Questionnaire (FCEQ) One-dimensional
Likert-type response scale (1–5)
Content validity
CFA
Internal consistency
Reliability in specific collective tasks in attack, defense, and offensive and defensive transitions Technical-tactical and psychological
4
5
6
7
9
10
11
12
16
17
19
20
2 Collective Efficacy Questionnaire for Sports (CEQS) Multidimensional
Likert-type response scale (0–9)
Content validity
EFA
CFA
Convergent/discriminant validity
Criterion validity
Internal consistency
Ability, preparation, effort, persistence, and unity Physical, technical-tactical and psychological
8
13
14
18
21
23
1 Collective Efficacy Inventory (CEI) Two-dimensional
Likert-type response scale (0–10)
Content validity
Internal consistency
Perseverance collective efficacy, skills collective efficacy, and offensive and defensive transitions Physical, technical-tactical and psychological
15 Cuestionario de Eficácia Colectiva Percibida (CEC) FÚTBOL Multidimensional
Likert-type response scale (1–5)
Content validity
EFA
Internal consistency
Efficacy of counterattack, defense, finalizing actions/transition, offensive, and concentration Technical-tactical and psychological
22 Collective Efficacy Questionnaire for Soccer (CEQsoccer) Multidimensional
Likert-type response scale (1–5)
Content validity
EFA
CFA
Convergent validity
Internal consistency
Team strength, sufficient training, leader confidence, and effective communication. Physical, technical-tactical and psychological
  1. EFA, exploratory factor analysis; CFA, confirmatory factor analysis; NR study, numerical reference of the study