Background

The experiments were conducted to validate a measurement model designed to separate the contributions of recollection processes, feelings of familiarity, and guessing in a recognition memory task. The three experiments differed mainly in the way response biases were induced. In Phase 1 of the experiments, participants read words and solved anagrams. In Phase 2 participants listened to another set of words. In Phase 3, participants were shown words that were either not previously presented (distractor words) or came from either Phase 1 or Phase 2. In this phase participants had to decide from which set the words were coming from. Participants in the Inclusion Condition had to classify a word as old if they had heard, read or generated it from an anagram. Distractor words had to be classified as new. Participants in the Exclusion Condition had to classify a word as old only if they had heard it in Phase 2. All other words had to be classified as new. Participants' responses were sampled into 16 categories. A measurement model was designed to predict the frequencies of responses in each of the categories. Please refer to the original article for a description of the categories and the model parameters. The model was fitted separately to read and anagram words so you have two data sets per experiment to play with.