Thinking critically about research -- Fundamental issues for interpreting research -- Reliability, validity, and interobserver agreement -- Basic statistical concepts and sampling procedures -- Experimental designs -- Causal-comparative research -- Correctional research -- Survey research methods -- Basic understandings in qualitative research -- Data collection and designs in qualitative research -- Withdrawal and associated designs -- Multiple-baseline designs -- Additional single-case designs -- Program evaluation -- Evaluating the literature -- Action research : moving from critical research consumer to researcher --