In the sample data, egg65p is probit for variable from Food Frequency Questionnaire; eggs1p, eggs2p and eggs3p are probits for variables from Diet Record. id egg65p eggs1p eggs2p eggs3p 84 -1.08032 -0.99446 . . 153 1.75069 0.30548 . . 183 0.41246 1.55477 . . 274 -0.30548 0.05015 . . 299 0.41246 -0.30548 . . 328 0.41246 -0.99446 . . 343 0.41246 -0.99446 . . 364 1.08032 0.91537 . . 377 -0.30548 1.17499 . . 379 -1.08032 -0.30548 . . 383 -0.30548 0.05015 . . 384 -0.30548 0.30548 . . 385 1.08032 0.05015 . . 388 0.41246 -0.30548 . . 399 -1.08032 -0.99446 . . 410 1.40507 0.52440 . . 414 -0.30548 -0.99446 . . 422 -1.08032 0.52440 . . 428 -1.08032 -0.99446 . . 433 -0.30548 -0.30548 . . 457 0.41246 0.70630 . . 459 -1.08032 0.91537 . . 464 0.41246 -0.99446 . . 3102 0.41246 1.55477 . . 26 0.77642 1.15035 1.00999 . 40 -0.07841 0.88715 0.48878 . 86 -1.31801 -0.23720 -0.88715 . 145 -0.07841 0.15731 0.23720 . 154 0.77642 -1.00999 -0.88715 . 280 -0.07841 0.67449 -0.88715 . 287 1.31801 -0.00000 -0.07841 . 295 -0.07841 -1.00999 -0.31864 . 309 -0.88715 1.53412 1.53412 . 329 -0.07841 -0.48878 0.23720 . 340 -0.07841 0.48878 -0.07841 . 352 1.31801 -0.23720 1.00999 . 359 -0.07841 -1.00999 -0.88715 . 427 -0.07841 -1.00999 -0.88715 . 3101 -1.31801 0.31864 0.67449 . 3 -0.62890 0.41728 -1.45000 -1.11534 8 0.29931 1.35170 -0.18537 0.29931 9 -0.62890 -0.11081 -0.67449 0.03687 19 0.29931 -0.22301 1.18683 0.03687 35 0.29931 0.11081 0.82079 0.72152 37 0.29931 -1.35170 -0.18537 0.03687 44 1.35170 0.41728 -0.18537 0.45785 56 0.29931 0.67449 0.22301 -0.41728 59 0.29931 -0.58459 -0.18537 1.88951 66 0.29931 0.67449 -1.04913 -1.11534 71 0.29931 -0.87357 -0.67449 -0.41728 72 -0.62890 -0.11081 0.49919 0.45785 74 0.29931 1.88951 0.33809 1.35170 76 0.29931 -0.58459 -0.18537 0.03687 81 0.29931 0.41728 0.11081 0.72152 98 1.35170 0.11081 0.82079 -1.11534 101 -1.35170 -1.35170 -0.67449 -1.11534 117 -0.62890 0.11081 0.11081 0.72152 137 -1.35170 -0.58459 -0.67449 -0.41728 142 0.29931 -0.87357 -0.67449 -0.41728 156 0.29931 0.41728 0.82079 1.18683 252 0.29931 -0.33809 1.35170 -0.41728 306 -1.35170 -0.58459 -0.18537 -1.11534 312 0.29931 1.56473 1.56473 -0.41728 338 0.29931 0.92890 1.88951 -1.11534 346 0.29931 0.92890 0.82079 1.56473 353 1.88951 0.92890 0.82079 1.04913 371 -1.35170 -1.35170 -0.67449 -1.11534 393 -1.35170 -1.35170 -1.45000 0.03687 401 -0.62890 0.11081 0.33809 0.45785 416 1.35170 1.18683 0.49919 0.92890 420 -0.62890 -0.33809 -1.45000 -1.11534 438 -0.62890 -1.35170 -1.45000 0.03687