To confirm the consensus that psychotherapy is effective in alleviating human suffering, a statistical method called allows researchers to seek patterns across large numbers of studies and draw conclusions that hold up across independent laboratories

Inferential statistics

Explanation:

Descriptive statistics describes data (for example, a chart or a simple graph) then inferential statistics allows one make predictions i.e inferences from that data. With inferential statistics, you take data from samples and make conclusions about a population.

the 4th option is the answer

"harry t. moore (1905-1951) – civil rights activist, leader, and the first martyr of the civil rights movement. fannie lou hamer (1917–1977) – leader in the american civil rights movement; co-founder of the national women's political caucus and freedom democratic party. james farmer (1920–1999) – congress of racial equality."