1 INTRODUCTION

2 DATA AND SAMPLE  
2.1 The GOODS-NICMOS Survey  
2.2 Redshifts  
2.3 Stellar Masses and Restframe Colour  
2.4 Sample Selection and Completeness  
2.5 Supplementary Infrared Data  

3 STAR FORMATION ACTIVITY  

4 RESULTS  
4.1 Star Formation and Stellar Mass  
4.2 The Effect of Photometric Redshifts  
4.3 The Effect of Dust  
4.4 Star Formation and Restframe Colour  
4.5 What Causes $z>1.5$ Galaxies to be Red?  

5 CONCLUSIONS