Otzovistho, guruhi opportunistii chap, ki soli 1908 dar RSDRP bo sardorii A. A. Bogdanov tashkil yofta bud. Otzovistho ruhiyai «…unsuroni khomi bolshevizm»-ro ifoda mekardand (Lenin Vladimir Ilich, Asarho, jildi 16, sahifai. 55)…Onho az Dumai davlati jeg zada giriftani (nomashon az otzivat) deputathoi fraksiyam cotsial-demokrat, bas kardani korhoi partiyavii tashkilothoi legaliyu nimlegalii sinfi korgar (ittifoqhoi kasaba, kooperativho, klubho va gayra) va dar tashkilothoi gayrilegalii partiyavi markazonidani korro talab mekardand.
Otzovistho davo menamudand, ki Hukumati podshohi aknun ba monarkhiyai burjuazi tabdil yoftaast, krepostnikho-pomeshikon boshand «evropoi», burjua shudaand. Onho az mavqei chapchigi noguzirii revolyutsiyai duyumi burjuazy-demokratiro rad karda, chunin mehisobidand, ki in guna revolyutsiya kayho guzashta raft va dar pesh revolyutsiyai «sof proletari» hast. Otzovistho sharoiti reaksiyai 1908—10 va dar Rossiya mavjud nabudani vaziyati revolyutsioniro ba nazar nagirifta, qatiyan talab va davat mekardand, ki shiori ruz shurishi musallahona boshad va favran amaliyoti oshkoroi revolyutsioni burda shavad.
Vladimir Ilich Lenin taktikai otzovisthoro «…taktikai nigoh doshtani (konserv karda nikoh doshtani) sukhanoni revolyutsionii…» davrai revolyutsiyam yakumi rus nomida bud (Asarhoi, jili 34, sahifai 433). Faoliyati Otzovistho ba mavjudiyati khudi partiya khatar dosht. Az rui tavsifi Lenin, otzovizm «..likvidatorchigii… chap», «…tarafi chappai menshevizm» bud (Asarhoi,jildi 15, sahifai 366—367). Konferensiyam 5-umi Umumirossnyagii RSDRP (yanvari 1909) likvidatorchigiro mahkum namuda, az Otzovistho qatiyan judo shud. Sarkardai Otzovistho Bogdanov az safi bolshevikon khorij karda shud. Dekabri 1909-um Otzovistho va ultimatistho guruhi ziddipartiyavii «Vperyod»-ro tashkil kardand. Bazei onho: Lunacharskiy, Lyadov, Pokrovskiy va digar badtar kambudihoi khudro etirof kardand.