TY - JOUR AU - Royce, Joseph R. AB - This article is a supplement to the summary by R. N. Walsh and R. A. Cummins (1976) of the current status of open-field measures of emotionality. The relevant factor-analytic and multifactor-experimental evidence is summarized. It is concluded that 3 lower order invariant factors underlie the 5 most extensively investigated open-field measures. Latency to move, locomotor activity, and penetration to the center are primarily indices of motor discharge. Open-field defecation is primarily an index of autonomic balance, and open-field urination is primarily an index of territorial marking. It is also concluded that the higher order factor of emotional stability is common to the 3 lower order factors. (49 ref) TI - On the construct validity of open-field measures JF - Psychological Bulletin DO - 10.1037/0033-2909.84.6.1098 DA - 1977-11-01 UR - https://www.deepdyve.com/lp/american-psychological-association/on-the-construct-validity-of-open-field-measures-dlrFNLC0T3 SP - 1098 EP - 1106 VL - 84 IS - 6 DP - DeepDyve ER -