Inclusion Criteria:  Anxiety or depression problems are the main problematic symptoms The patient is over 18 years of age The patient is fluent in the language in which the therapy is performed (Spanish in the present study) The patient is able to attend to the evaluation and treatment sessions The patient signs the informed consent form  Exclusion Criteria:  The patient presents a severe mental disorder (bipolar disorder, schizophrenia, or an organic mental disorder) or there is suicide risk at the time of assessment The patient has used substances in the last three months (excluding cannabis, coffee, and / or nicotine) The patient has previously received 8 or more sessions of psychological treatment with clear and identifiable CBT principles in the past 12 months or is currently receiving psychological treatment