قارن الطرق

	تصميم التجربة العشوائية أحادية التعمية أحادية الفرد (SB-SSED)	تصميم ABAB
المجال	التصميم التجريبي	التصميم التجريبي
العائلة	Process / pipeline	Process / pipeline
سنة النشأة	1970s–1984 (consolidated)	1960s (Sidman 1960; Baer et al. 1968)
صاحب الطريقة	Barlow & Hersen (single-subject methodology); blinding conventions from clinical trial tradition	Murray Sidman; Baer, Wolf & Risley (applied behavior analysis formalization)
النوع	Controlled experimental design variant	Single-subject experimental design
المصدر التأسيسي	Barlow, D. H., & Hersen, M. (1984). Single case experimental designs: Strategies for studying behavior change (2nd ed.). Pergamon Press. ISBN: 978-0080302378	Sidman, M. (1960). Tactics of Scientific Research: Evaluating Experimental Data in Psychology. Basic Books.
الأسماء البديلة	single-blind N-of-1 design, SB-SSED, single-blind within-subject design, single-blind single-case experimental design	reversal design, withdrawal design, ABAB reversal, operant reversal design
ذات صلة	6	4
الملخص	A single-blind single-subject experimental design (SB-SSED) applies a single-blind protocol to an N-of-1 experiment: one individual participant is studied intensively across alternating or sequential phases, and either the participant or the assessor — but not both — is kept unaware of the current treatment condition. This design combines the idiographic power of single-subject methodology with a structured blinding control to reduce performance or assessment bias, and is common in applied behavior analysis, clinical psychology, and rehabilitation research.	The ABAB design is a single-subject experimental methodology that establishes causal control by repeatedly introducing and removing an intervention. A baseline phase (A) is followed by an intervention phase (B), then a return to baseline (A), and a second intervention phase (B), allowing the researcher to demonstrate that observed behavior changes are produced by the intervention rather than by coincidental factors.