TY  - GEN
AU  - Mefferd,R B
AU  - Wieland,B A
AU  - Greenstein,D G
AU  - Leppman,P K
TI  - Effects of pretraining and instructions on validity of perceptual reports by inexperienced observers
SN  - 0031-5125
PY  - 1969///0602
KW  - Form Perception
KW  - Humans
KW  - Male
KW  - Practice, Psychological
N1  - Publication Type: Journal Article
ER  -