Research on attitudes and persuasion became very popular. In the 1960's many new societal concerns appeared. Great increase in the number of social psychologists and a huge quantity of research probably due to the perceived social relevance of social research. The psychologist would be interested in collecting data in as controlled conditions as possible. Choice of research participants.
Most psychologists use convenience samples .
Full control over the stimuli presented to participants and the responses required of them. External validity Experimental realism has been emphasized over mundane realism . Step 6 Analyzing data statistically Number crunching using computers. Use of inferential statistics. Bias in science towards publication of significant findings.