Magnitude of self-reinforcement (SR+) and self-punishment, (SR−) was investigated in a pseudoperceptual task as a function of both the pattern (variable or consistent) of previous external reinforcement and the direction of current, nonspecific feedback (e.g., “You're getting better” or “You're getting worse”). Working from a model which assumes SR to be based on an individual's discrimination of the discrepancy between current performance and a pre-set standard, it was hypothesized that a standard (50% accuracy) established under consistent prior performances would produce greater magnitude SR+ (with current increments in performance) and SR− (with current performance decrements) than would the identical standard derived from a variable prior pattern of reward. A trials effect was also expected. Results confirmed the hypotheses. Implications for behavior change via self-evaluative and self-reinforcement techniques are discussed.