who designed the strange situation to measure attachment
Attachment measures The Strange Situation procedure was formulated to observe attachment relationships between a caregiver and children between the age of nine and 18 months. It was developed by Mary Ainsworth, a developmental psychologist[3] Originally it was devised to enable children to be classified into the attachment styles known as secure, anxious-avoidant and anxious-ambivalent. As research accumulated and atypical patterns of attachment became more apparent it was further developed by Main and Solomon in 1986 and 1990 to include the new category of disorganized/disoriented attachment.[4][5]
Frederick Winslow Taylor Taylor thought that by analyzing work, the "one best way" to do it would be found. He is most remembered for developing the stopwatch time study, which combined with Frank Gilbreth's motion study methods, later became the field of time and motion study. He broke a job into its component parts and measured each to the hundredth of a minute. One of his most famous studies involved shovels. He noticed that workers used the same shovel for all materials. He determined that the most effective load was 21Â½ lb, and found or designed shovels that for each material would scoop up that amount. He was generally unsuccessful in getting his concepts applied, and was dismissed from Bethlehem Iron Company/Bethlehem Steel Company. Nevertheless, Taylor was able to convince workers who used shovels and whose compensation was tied to how much they produced to adopt his advice about the optimum way to shovel by breaking the movements down into their component elements and recommending better ways to perform these movements. It was largely through the efforts of his disciples (most notably H.L. Gantt) that industry came to implement his ideas. Moreover, the book he wrote after parting company with the Bethlehem company, Shop Management, sold well.