The situation of uncertainty faced by the entire world due to Covid-19 is attracting the attention of researchers. The article analyzes the experience and the behavior of people during the pandemic in terms of the attitude of tolerance to ambiguity (tolerance to ambiguity-intolerance to ambiguity). The study was conducted in the Kazakh language. The diagnostic methods used in the study were previously translated and adapted into Kazakh language. A high reliability coefficient was obtained for each diagnostic method: “Scale of resistance to sources of stress” by V.V.Raspopin (α-Kronbach - 0.963), “Scale of tolerance and intolerance to ambiguity” by S.Badner (α-Kronbach-0.850), “Scale of tolerance to ambiguity” by D.McLane (α-Kronbach - 0.895), the methodology “Personal readiness for changes” M.A.Rolnik, S.Heather, M.Gold and K.Hall (α-Kronbach - 0.937), the methodology "Fatigue - Monotony – Boredom – Stress” H.E.Plath and P.Richter (α-Kronbach - 0.931), the methodology "Determination of the dominant state" L.V.Kulikov (α-Kronbach - 0.962).  Based on the results of the study, gender and age characteristics of people's attitude to tolerance to ambiguity were determined.