Students currently enrolled in the academic year 2019-2020 from the 24 IEMS centers of Mexico City

Smartphone app with MeMind questionnaires

Columbia-Suicide Severity Rating Scale (C-SSRS) is encompassed into MeMind for this purpose.

In C-SSRS, four constructs are measured. The first is the severity of ideation, which is rated on a 5-point ordinal scale from 1="wish to be dead" to 5="suicidal intent with plan".

The second is the intensity of ideation, which comprises 5 items, each rated on a 5-point ordinal scale: frequency, duration, controllability, deterrents, and reason for ideation.

The third is the behavior, which is rated on a nominal scale that includes actual, aborted, and interrupted attempts; preparatory behavior; and nonsuicidal self-injurious behavior.

And the fourth is the lethality, which assesses actual attempts; actual lethality is rated on a 6-point ordinal scale.

Results are coded in the instrument itself with colored labels that indicates definitions of suicidal ideation and behavior, quantify both of them and gauge their severity.

Definitions are available elsewhere (http://cssrs.columbia.edu).

The assessment of social interaction will be carried out through six games that expose the participant to decision-making in preset environments with very simple and easily understandable rules (Dictator's Game, Prisoner's Dilemma, Loss Aversion, Risk Aversion, Trust Game or The Investment Game, and Ambiguity Aversion).

Participants will be asked to complete a questionnaire regarding possible symptoms related to depression.

PHQ-9 questionnaire is emcompassed into Memind for this purpose.