The effects of different levels of rehearsal quality on serial recall, over and above simple labeling, were studied in a sample of 104 kindergartners. Subjects were randomly assigned to four experimental conditions. In one condition the subject and experimenter rehearsed together; in a second condition only the experimenter rehearsed; in the third the subject rehearsed alone. A control group received no assistance. All subjects (including the control group) received the same baseline and generalization instructions to remember pictures in the correct order. Subjects were given a practice trial followed by nine experimental trials. The pictures to be recalled were labeled on all trials for all subjects. Serial recall was facilitated only when the experimenter rehearsed and the child remained silent. In addition, rehearsal by the subject tended to interfere with recall. It was suggested tentatively that requiring young children to overtly produce the labels of pictures may cause an interference in memory for order. (Author/MS)